# Computer Controlled Acoustic Instruments pt2

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2015 EP by Aphex Twin

Computer Controlled Acoustic Instruments pt2 EP by Aphex Twin Released 23 January 2015 (2015-01-23) Genre Breakbeat[1] avant-garde jazz[2] Length 27:56 Label Warp Producer Richard D James Aphex Twin chronology Syro (2014) Computer Controlled Acoustic Instruments pt2 (2015) Orphaned Deejay Selek 2006–08 (2015)

***Computer Controlled Acoustic Instruments pt2*** is an [extended play](/source/Extended_play) record by the British [electronic music](/source/Electronic_music) artist and producer [Aphex Twin](/source/Aphex_Twin). It was released on 23 January 2015 on [Warp](/source/Warp_(record_label)). It is meant as a companion piece to his fifth studio album, *[Drukqs](/source/Drukqs)* (2001).

It received mixed reviews and placed in several international [record charts](/source/Record_chart), including the United States *[Billboard](/source/Billboard_(magazine))* [Dance/Electronic Albums](/source/Dance%2FElectronic_Albums) chart, where it peaked at number one.

## Background

*Computer Controlled Acoustic Instruments pt.2* features acoustic sounds such as [prepared piano](/source/Prepared_piano), drums, and wood and metal percussion, controlled electronically.[3] James considers it the successor to his 2001 album *[Drukqs](/source/Drukqs)*:

Part 1 is *Drukqs*, as that was the first thing I released that utilised computer controlled instruments, namely a modified [Yamaha Disklavier](/source/Yamaha_Disklavier), 2nd gen and a couple of [midi](/source/MIDI) controlled solenoid based drum mechanisms I made just after I got the Disklavier.[4]

The EP extends the ideas of its predecessor, according to Mark Richardson of *[Pitchfork](/source/Pitchfork_Media)*, who noted that "where James used to offer his [electro-acoustic](/source/Electroacoustic_music) pieces as a showcase for lyrical melodies, about half the music here consists of crisply arranged beats, with loping drum lines that occasionally veer toward [funk](/source/Funk)".[3] Much of the album features [breakbeat](/source/Breakbeat) backing.[1] *[Exclaim!](/source/Exclaim!)* stated that most tracks "fall under the label of [avant-garde jazz](/source/Avant-garde_jazz) — some of it experimental and way out there — while other parts are coherent enough to sneak into the darker corners of [Ninja Tune](/source/Ninja_Tune)'s back catalogue."[2]

## Release

*Computer Controlled Acoustic Instruments pt2* was announced for release on 9 January 2015 on [Warp](/source/Warp_(record_label))'s official website.[5] The track listing, worldwide release date and a list of available release formats were published on [Bleep.com](/source/Bleep.com) alongside [pre-orders](/source/Pre-order) of the EP. Released worldwide on 23 January, *Computer Controlled Acoustic Instruments pt2* was made available as a [12-inch record](/source/12-inch_single) pressed on 140-gram [vinyl](/source/Gramophone_record), a [Digipak](/source/Digipak) [CD](/source/Compact_disc) and a [digital download](/source/Music_download) in various digital formats, including [MP3](/source/MP3), [WAV](/source/WAV) and [FLAC](/source/FLAC).[6] An alternative mix of the EP's opening track—"Diskhat ALL Prepared1mixed [snr2mix]"—was made available for [stream](/source/Streaming_media) and MP3 download on [Richard D James](/source/Aphex_Twin)' official [SoundCloud](/source/SoundCloud) account a day prior.[7]

In Japan, *Computer Controlled Acoustic Instruments pt2* was released on Beat Records and sold 3,627 physical copies in its first week of release.[8][9] The EP was particularly successful on the independent charts in Ireland and the United Kingdom; it peaked at number 8 on both the [Irish Independent Albums Chart](/source/Irish_Independent_Albums_Chart) and the [UK Independent Albums Chart](/source/UK_Indie_Chart),[10][11] as well as entering at number 7 on the UK [Official Record Store Albums Chart](/source/Official_Record_Store_Chart),[12] where it peaked at number 4 in its third week of release.[13] *Computer Controlled Acoustic Instruments pt2* placed in three separate [*Billboard* charts](/source/Billboard_charts) in the US. It fared well on the [Dance/Electronic Albums](/source/Dance%2FElectronic_Albums) chart, entering at number 4 in its first week of release and peaking at number 1 the following week;[14] the EP also entered the [Tastemakers Albums](/source/Billboard_charts#Albums) chart at number 24 and placed at number 10 in its second week.[15]

## Reception

Professional ratings Aggregate scores Source Rating Metacritic 64/100[16] Review scores Source Rating AllMusic [17] Clash 7/10[18] Drowned in Sound 8/10[19] Exclaim! 6/10[2] Fact [20] The Guardian [1] NME 6/10[21] Pitchfork 8.3/10[3] Resident Advisor 3.3/5[22] Spin 7/10[23]

At [Metacritic](/source/Metacritic), which assigns a normalised rating out of 100 to reviews from mainstream critics, *Computer Controlled Acoustic Instruments pt2* received an average score of 64, based on 17 reviews, indicating "generally favorable reviews".[16]

Felicity Martin of *[Clash](/source/Clash_(magazine))* called the EP "a difficult but enriching document [that is] compiled of often-jarring, disjointed instruments," noting the "really interesting part of this extended play—it's not about making the robots feel human, but feeling as though you're in the room with them, whirring about around you."[18] In his review for the *[NME](/source/NME)* Louis Pattison referred to the EP as "true, manufactured [pop music](/source/Pop_music)" due to the instrumentation being "played not by human hands, but by signals zipping around circuit boards." He added that "as a challenge—to his audience, and to himself [...] it succeeds admirably.".[21] For *[Drowned in Sound](/source/Drowned_in_Sound)*, Benjamin Bland referred to the EP as "a welcome reminder of James's ability to utilise decidedly [avant-garde](/source/Avant-garde) ideas in a manner that, although acutely alien to our idea of musical normality, is nevertheless engaging and inspiring." Bland also regarded the EP as "highly listenable, no less so than *[Syro](/source/Syro)*".[19] *[Pitchfork](/source/Pitchfork_(website))* writer Mark Richardson praised the EP but called it "a release for established fans."[3]

*[Exclaim!](/source/Exclaim!)* writer Daryl Keating offered a mixed review, describing the EP as "the compositional scribblings of a sleepless man".[2] *[Resident Advisor](/source/Resident_Advisor)*'s Jordan Rothlein's review described the EP as "a moody set that sounds a bit like either [Tom Waits](/source/Tom_Waits) instrumentals, a [gamelan](/source/Gamelan) ensemble going pop, or maybe just some bits from *Syro* played back at a fraction of their original speed." Rothelin added that "though there's a certain pleasure in listening to an artist figure things out, a full 28 minutes feels like overkill."[22] Writing for *[The Guardian](/source/The_Guardian)*, Ben Beaumont-Thomas was highly critical of the EP, saying that "if *Syro* was an inquisitive [artificial intelligence](/source/Artificial_intelligence) ... then [this EP] is like the organic consciousness it was drawn from, its owner now tinkering with jigsaws in a retirement home."[1] [AllMusic](/source/AllMusic) was almost entirely negative; reviewer Andy Kellman wrote that "nothing is particularly energizing ... the EP should be approached like a sequel—with low expectations."[17]

## Track listing

All tracks are written by [Richard D James](/source/Aphex_Twin).

Computer Controlled Acoustic Instruments pt2 track listing No. Title Length 1. "diskhat ALL prepared1mixed 13" 5:22 2. "snar2" 0:20 3. "diskhat1" 2:26 4. "piano un1 arpej" 0:50 5. "DISKPREPT4" 1:53 6. "hat 2b 2012b" 1:25 7. "disk aud1_12" 0:10 8. "0035 1-Audio" 0:26 9. "disk prep calrec2 barn dance [slo]" 4:22 10. "DISKPREPT1" 3:30 11. "diskhat2" 0:38 12. "piano un10 it happened" 1:48 13. "hat5c 0001 rec-4" 4:46 Total length: 27:56

The track length above is valid for CD, digital download and vinyl played on 33 rpm.

2017 re-release bonus tracks No. Title Length 14. "diskhat ALL prepared1mixed [snr2mix]diskhat ALL prepared1bmixed [snr2mix],e,ru,+4" 5:22 15. "diskhat ALL [snr2mix] [fast],e,+3" 4:52 16. "DISKLVPRPT1 Equinox barn dance[fast]" 2:20 Total length: 40:30

## Personnel

All personnel credits adapted from *Computer Controlled Acoustic Instruments pt2*'s album notes.[24]

**Performer**

- [Richard D James](/source/Aphex_Twin) – keyboards, percussion, programming, [production](/source/Record_producer)

**Technical personnel**

- Beau Thomas – [mastering](/source/Audio_mastering)

**Design personnel**

- [The Designers Republic](/source/The_Designers_Republic) (credited as "MITDR™") – design, cover art

- Atsushi Sasaki – liner notes (Japanese CD edition only)[25]

## Chart positions

Chart performance for Computer Controlled Acoustic Instruments pt2 Chart (2015) Peak position Belgian Albums Chart (Flanders)[26] 80 Belgian Albums Chart (Wallonia)[27] 166 Irish Albums Chart[28] 32 Irish Independent Albums Chart[10] 8 Japanese Albums Chart[9] 24 UK Albums Chart[29] 36 UK Independent Albums Chart[11] 8 UK Official Record Store Albums Chart[13] 4 US Billboard Dance/Electronic Albums[14] 1 US Billboard Independent Albums[30] 24 US Billboard Tastemaker Albums[15] 10

## Release history

Release history and formats for Computer Controlled Acoustic Instruments pt2 Region Date Format(s) Label Catalogue Various[5] 23 January 2015 12-inch, CD, digital download Warp WAP375 Japan[8] CD, digital download Beat BRE-50

## References

1. ^ [***a***](#cite_ref-gdn_1-0) [***b***](#cite_ref-gdn_1-1) [***c***](#cite_ref-gdn_1-2) [***d***](#cite_ref-gdn_1-3) Beaumont-Thomas, Ben (23 January 2015). ["Aphex Twin – Computer Controlled Acoustic Instruments pt2 review: 'Sometimes unlistenably irritating' | Music"](https://www.theguardian.com/music/2015/jan/23/aphex-twin-computer-controlled-acoustic-instruments-pt2-review). *[The Guardian](/source/The_Guardian)*. Retrieved 23 January 2015.

1. ^ [***a***](#cite_ref-exc_2-0) [***b***](#cite_ref-exc_2-1) [***c***](#cite_ref-exc_2-2) [***d***](#cite_ref-exc_2-3) Keating, Daryl (23 January 2015). ["Aphex Twin: Computer Controlled Acoustic Instruments Pt2"](http://exclaim.ca/Music/article/aphex_twin-computer_controlled_acoustic_instruments_pt_2). *[Exclaim!](/source/Exclaim!)*. Retrieved 25 January 2015.

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1. ^ [***a***](#cite_ref-beat_8-0) [***b***](#cite_ref-beat_8-1) ["Warp Records / Aphex Twin – Computer Controlled Acoustic Instruments pt2 EP"](https://web.archive.org/web/20150202164126/http://www.beatink.com/Labels/Warp-Records/Aphex-Twin/BRE-50/). *Beatink* (in Japanese). Archived from [the original](http://www.beatink.com/Labels/Warp-Records/Aphex-Twin/BRE-50) on 2 February 2015. Retrieved 2 February 2015.

1. ^ [***a***](#cite_ref-jp_9-0) [***b***](#cite_ref-jp_9-1) ["オリコン週間 CDアルバムランキング 2015年01月19日～2015年01月25日 21～30位"](https://web.archive.org/web/20150201221313/http://www.oricon.co.jp/rank/ja/w/2015-02-02/p/3/) [Oricon Weekly CD Album Index: 19 January 2015–25 January 2015 – Places 21–30]. *[Oricon](/source/Oricon)* (in Japanese). Archived from [the original](http://www.oricon.co.jp/rank/ja/w/2015-02-02/p/3) on 1 February 2015. Retrieved 1 February 2015.

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1. ^ [***a***](#cite_ref-uk1_11-0) [***b***](#cite_ref-uk1_11-1) ["2015-01-31 Top 40 Independent Albums Archive"](https://www.officialcharts.com/charts/independent-albums-chart/20150125/131/). [Official Charts Company](/source/Official_Charts_Company). Retrieved 1 February 2015.

1. **[^](#cite_ref-12)** ["2015-01-31 Top 40 Official Record Store Albums Archive"](https://www.officialcharts.com/charts/record-store-chart/20150125/530/). [Official Charts Company](/source/Official_Charts_Company). Retrieved 1 February 2015.

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1. ^ [***a***](#cite_ref-us1_14-0) [***b***](#cite_ref-us1_14-1) ["Aphex Twin – Chart history: Dance/Electronic Albums"](https://www.billboard.com/artist/aphex-twin/chart-history/elp/). *[Billboard](/source/Billboard_(magazine))*. Retrieved 21 August 2018.

1. ^ [***a***](#cite_ref-us2_15-0) [***b***](#cite_ref-us2_15-1) ["Aphex Twin – Chart history: Tastemaker Albums"](https://www.billboard.com/artist/aphex-twin/chart-history/tas/). *Billboard*. Retrieved 21 August 2018.

1. ^ [***a***](#cite_ref-mc_16-0) [***b***](#cite_ref-mc_16-1) ["Reviews for Computer Controlled Acoustic Instruments, Pt. 2 \[EP\] by Aphex Twin"](https://www.metacritic.com/music/computer-controlled-acoustic-instruments-pt-2-ep/aphex-twin). *[Metacritic](/source/Metacritic)*. Retrieved 6 February 2015.

1. ^ [***a***](#cite_ref-am_17-0) [***b***](#cite_ref-am_17-1) Kellman, Andy (26 January 2015). ["*Computer Controlled Acoustic Instruments, Pt. 2* – Aphex Twin | Songs, Reviews, Credits, Awards"](https://www.allmusic.com/album/computer-controlled-acoustic-instruments-pt2-ep-mw0002811698). *[AllMusic](/source/AllMusic)*. Retrieved 27 January 2015.

1. ^ [***a***](#cite_ref-cm_18-0) [***b***](#cite_ref-cm_18-1) Martin, Felicity (26 January 2015). ["Aphex Twin – Computer Controlled Acoustic Instruments Pt2 | Reviews"](http://www.clashmusic.com/reviews/aphex-twin-computer-controlled-acoustic-instruments-pt2). *[Clash](/source/Clash_(magazine))*. Retrieved 26 January 2015.

1. ^ [***a***](#cite_ref-dis_19-0) [***b***](#cite_ref-dis_19-1) Bland, Benjamin (29 January 2015). ["Ep Review: Aphex Twin – Computer Controlled Acoustic Instruments pt2 / Releases"](https://web.archive.org/web/20150130232453/http://drownedinsound.com/releases/18612/reviews/4148655). *[Drowned in Sound](/source/Drowned_in_Sound)*. Archived from [the original](http://drownedinsound.com/releases/18612/reviews/4148655) on 30 January 2015. Retrieved 30 January 2015.

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1. ^ [***a***](#cite_ref-nme_21-0) [***b***](#cite_ref-nme_21-1) Pattison, Louis (23 January 2015). ["Reviews – Aphex Twin – Computer Controlled Acoustic Instruments Pt 2"](https://www.nme.com/reviews/aphex-twin--2/15898). *[NME](/source/NME)*. Retrieved 23 January 2015.

1. ^ [***a***](#cite_ref-ra_22-0) [***b***](#cite_ref-ra_22-1) Rothlein, Jordan (28 January 2015). ["RA Reviews: Aphex Twin – Computer Controlled Acoustic Instruments pt2 EP on Warp Records (Single)"](http://www.residentadvisor.net/review-view.aspx?id=16357). *[Resident Advisor](/source/Resident_Advisor)*. Retrieved 30 January 2015.

1. **[^](#cite_ref-spin_23-0)** Weiss, Dan (3 February 2015). ["Review: Aphex Twin Takes Us to His Toy Factory on 'Computer Controlled Acoustic Instruments Pt2' EP"](http://www.spin.com/reviews/aphex-twin-computer-controlled-acoustic-instruments-ep2). *[Spin](/source/Spin_(magazine))*. Retrieved 5 February 2015.

1. **[^](#cite_ref-24)** *Computer Controlled Acoustic Instruments pt2* (Liner notes). [Aphex Twin](/source/Aphex_Twin). [Warp](/source/Warp_(record_label)). 2015. WAP375.{{[cite AV media notes](https://en.wikipedia.org/wiki/Template:Cite_AV_media_notes)}}: CS1 maint: others in cite AV media (notes) ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_others_in_cite_AV_media_(notes)))

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## External links

- *[Computer Controlled Acoustic Instruments pt2](https://www.discogs.com/master/785340)* at [Discogs](/source/Discogs) (list of releases)

- [*Computer Controlled Acoustic Instruments pt2*](https://musicbrainz.org/release-group/cdf3513c-f1c0-48aa-b48b-194c03c5dae9) at [MusicBrainz](/source/MusicBrainz) (list of releases)

v t e Aphex Twin Discography Tracks As Aphex Twin Studio albums Selected Ambient Works 85–92 (1992) Selected Ambient Works Volume II (1994) ...I Care Because You Do (1995) Richard D. James Album (1996) Drukqs (2001) Syro (2014) EPs Analogue Bubblebath (1991) Analog Bubblebath Vol 2 (1991) Digeridoo (1992) Xylem Tube (1992) On (1993) Ventolin (1995) Donkey Rhubarb (1995) Girl/Boy EP (1996) Come to Daddy (1997) Analord 10 (2005) Computer Controlled Acoustic Instruments pt2 (2015) Cheetah (2016) Collapse (2018) Blackbox Life Recorder 21f / In a Room7 F760 (2023) London 19.08.2023 (2023) Singles "Come to Daddy" (1997) "Windowlicker" (1999) "Avril 14th" (2001) "minipops 67 [120.2]" (2014) "MARCHROMT30A edit 2b 96" (2015) "Blackbox Life Recorder 21f" (2023) Compilations Classics (1995) 26 Mixes for Cash (2003) Chosen Lords (2006) Music from the Merch Desk (2016–2023) (2024) As AFX Analogue Bubblebath Vol 3 (1992) Analogue Bubblebath 4 (1994) Hangable Auto Bulb (1995, 2005) Smojphace EP (2003) Analords 1–9, 11 (2004-2005) Chosen Lords (2006) Orphaned Deejay Selek 2006–08 (2015) London 03.06.17 (2017) As The Tuss Confederation Trough (2007) Rushup Edge (2007) As Polygon Window Surfing on Sine Waves (1993) Quoth (1993) As Bradley Strider Bradley's Robot (1993) Bradley's Beat (1995) As Caustic Window Joyrex J4 EP (1992) Joyrex J5 EP (1992) Joyrex J9i (1993) Joyrex J9ii (1993) Compilation (1998) Caustic Window (2014) As GAK GAK (1994) As Power Pill Pac-Man EP (1992) Collaborations Expert Knob Twiddlers (1996) Unreleased Q-Chastic EP Joyrex Tape Analogue Bubblebath 5 Melodies from Mars Related articles Universal Indicator Acoustica: Alarm Will Sound Performs Aphex Twin Warp Records Rephlex Records Chris Cunningham Monkey Drummer Rubber Johnny Warp Works & Twentieth Century Masters SoundCloud demos Category

Authority control databases MusicBrainz release group

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Adapted from the Wikipedia article [Computer Controlled Acoustic Instruments pt2](https://en.wikipedia.org/wiki/Computer_Controlled_Acoustic_Instruments_pt2) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Computer_Controlled_Acoustic_Instruments_pt2?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.