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Boulder Dash Theme
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# Boulder Dash for ATARI 2600, by Peter Liepa, 1984 | |
# A Live Loop to algorave to. | |
# | |
# Original music (Youtube, Commodore 64 version): https://www.youtube.com/watch?v=14CAO72_pJw | |
# A pretty accurate transcription: https://musescore.com/user/3769276/scores/1076731 (I can't hear any errors) | |
# | |
# Interesting note: Boulder Dash was originally written for the ATARI 2600 video game console, which had a TIA sound chip | |
# with two oscillators to generate tones (max polyphony was 2). So on both the Youtube recording (which is of a C64 port) | |
# and the MIDI score transcription, only two notes are ever played at once. | |
# | |
# More on Boulder Dash: https://en.wikipedia.org/wiki/Boulder_Dash | |
# 8 bars, 16 semiquavers per bar, two-tone polyphony, consequently no actual rests, but the bass and treble parts bounce | |
# between the two occilators. 128 x 2 notes. Repeats forever. | |
aud0 = [ :F3, :A3, :C4, :F4, :G3, :Bb3, :C4, :G4, :Db4, :Eb4, :F4, :Ab4, :Eb4, :D5, :E4, :C5] | |
aud0.concat [ :F3, :F4, :C3, :G3, :Eb3, :G4, :G3, :Eb3, :F3, :F4, :C3, :G3, :Db3, :F5, :F3, :Db3] | |
aud0.concat [:Eb3, :Eb4, :Bb3, :F3, :B3, :Eb5, :Eb4, :B3, :C2, :E4, :C2, :F4, :Bb3, :Bb3, :Bb4, :Bb3] | |
aud0.concat [ :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4, :F4] | |
aud0.concat [ :F4, :A4, :F4, :Bb4, :F4, :A4, :F4, :Bb4, :F4, :A4, :F4, :Bb4, :Eb4, :G4, :Eb4, :Ab4] | |
aud0.concat [ :F4, :F5, :F4, :Eb5, :F4, :D5, :F4, :C5, :Eb4, :Eb5, :Eb4, :Eb5, :Eb4, :Bb4, :Eb4, :Eb5] | |
aud0.concat [ :F4, :A4, :F4, :Bb4, :F4, :A4, :F4, :Bb4, :F4, :A4, :F4, :Bb4, :Eb4, :G4, :Eb4, :Ab4] | |
aud0.concat [ :A4, :F4, :C4, :A3, :G4, :Eb4, :Bb3, :Eb3, :C5, :A4, :F4, :C4, :G4, :Eb4, :Bb3, :Eb3] | |
aud0=aud0.ring | |
aud1 = [ :F2, :C3, :F3, :Ab3, :Eb2, :D3, :Eb3, :Bb3, :Db2, :Db2, :Db3, :Db2, :Eb3, :Bb4, :E3, :A4] | |
aud1.concat [ :F2, :F2, :F2, :F2, :Eb2, :Eb2, :Eb2, :Eb2, :F2, :F2, :F2, :F2, :Db3, :Db3, :Db3, :Db3] | |
aud1.concat [:Eb2, :Eb2, :Eb2, :Eb2, :B2, :B2, :B2, :B2, :C2, :C3, :C2, :C3, :Bb2, :Bb2, :F2, :F2] | |
aud1.concat [ :F2, :F2, :F2, :F2, :F3, :F3, :F2, :F2, :Eb2, :Eb2, :Eb2, :Eb2, :Eb3, :Eb3, :Eb2, :Eb2] | |
aud1.concat [ :F2, :F4, :F2, :F4, :F3, :F4, :F2, :F4, :Eb2, :F4, :Eb2, :F4, :Eb3, :Eb4, :Eb2, :Eb4] | |
aud1.concat [ :F2, :F2, :F2, :C5, :F3, :F3, :F2, :C5, :Eb2, :Eb2, :Eb2, :Eb2, :Eb3, :Eb3, :Eb2, :Eb2] | |
aud1.concat [ :F2, :F4, :F2, :F4, :F3, :F4, :F2, :F4, :Eb2, :F4, :Eb2, :F4, :Eb3, :Eb4, :Eb2, :Eb4] | |
aud1.concat [ :F4, :C4, :A3, :F3, :Eb4, :Bb3, :G3, :Eb2, :A4, :F4, :C4, :A3, :Bb3, :G3, :Eb3, :Eb2] | |
aud1=aud1.ring | |
#### | |
use_transpose 0 | |
use_synth :tri | |
use_synth_defaults attack: 0, decay: 0, sustain: 0.25, release: 0.2 | |
use_bpm 93 | |
set :position, tick_reset | |
dur=0.25 | |
phz=4 | |
live_loop :metro do | |
sleep dur | |
set :position, tick | |
end | |
live_loop :au0 do | |
use_synth :tri | |
##| with_fx :ixi_techno, phase: phz, res: 0.95, cutoff_max: 129, cutoff_min: 50 do #, delay: 8, feedback: 5 | |
##| steps=phz/dur | |
##| steps.times do | |
play aud0[sync :position], pan: -0.5 | |
##| end | |
##| end | |
end | |
live_loop :au1 do | |
use_synth :subpulse | |
##| with_fx :bitcrusher do | |
play aud1[sync :position], pan: 0.5#, sustain: 0.0125#, sustain: 0.0125, pan: 1, amp: 2 | |
##| end | |
end |
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Debugging tip
When debugging code like this that is based upon a ring or array of notes/patterns, you can increment the starting point so that you don't have to listen through the parts you've already heard and corrected.
In this case, the
:metro
loop istick
ing along andset
ting the:position
which is thensync
ed and used by the other loops to keep together and in time along their respective note rings. To start further into the music, simply add the number of ticks(positions) you want to start after. E.g. to start after the 64th note, do like so: