Then make room for our new bass track and delete the content of the loop. Save your work and copy your current :bass loop to another buffer, in case you want to come back to it. Let’s use this sorcery for a bubbling bass track. Here’s an example: loop do play ( chord :c, :major ).
That creates a list of right notes for you automatically. Instead of writing, you can just use (chord :C, :major). You don’t even have to remember what notes are in what chords. Like sleep values for example: loop do use_octave. Instead of notes you could have anything in the list. is a list of notes (in this case the notes of the C major chord).choose picks out one of those notes at random. Let’s do something interesting for the bass loop.choose is a handy method that randomly picks out an element from a list. Here’s an example: live_loop :melody do if one_in ( 6 ) use_transpose 2 else use_transpose 0 end play_pattern_timed, , attack: 0, release: 0.2 end Create a random acid bass track You can throw a dice to decide when to shift the pitch up for the melody. We could randomly transpose the melody a bit every now and then to add some spice to the track. Transposing means changing the pitch up or down. Let’s add some generative elements to the track and program the computer to compose for us! Throw a dice and transpose the melody Now we’re going to do something really cool and unleash the true potential of Sonic Pi. Great! Now you got your song running nicely with a steady beat and a bass with the melody hook on the top. Based on Getting started with Sonic Pi by Raspberry Pi foundation and An introduction to Sonic Pi by Stuart Brett. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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