Sonic Pi

Cantabile, SurgeXT: Factory Patches - Plucks - EGuitar, Sonic Pi, recorded with Audacity

Soft Synths with Sonic Pi

Chord Progression with Arpeggios

This piece is produced entirely from a single sample :ambi_glass_rub built into Sonic Pi. From this a complete range of notes are generated by calculating the appropriate rates at which to play the sample, and then the piece, written by Mozart in 1791 for Benjamin Franklin's Glass Armonica is played.
The code is in a gist here
https://gist.github.com/rbnpi/abbb0a7880f355c12d0e

Glass Armonica

Tribute to Dr Who theme coded on Sonic Pi.
Code at https://gist.github.com/rbnpi/26418cb7c462634e5a4d

SonicPi - DrWhoTribute

Three 16th Century Madrigals by Luca Marenzio 1533-1599 arranged for 5 trumpets. Coded for Sonic Pi by Robin Newman. Features use of fx Level to control part dynamics.
Gist with code and sample link at
https://gist.github.com/rbnpi/17b4eda401a5fb68c417

SonicPi - 3MarenzioMadrigalsArrangedFor5Trumpetes

This arrangement of Ravel's Bolero for Piano and Clarinet is by Bernard Dewagtere http://www.free-scores.com/download-sheet-music.php?pdf=31458. I have coded it for Sonic Pi, using the inbuilt Piano synth and a single external Clarinet sample from the Sonatina Symphonic Library. On a Mac at least, the program is too long for the constraints set by Sonic Pi's use of UDP for communication, so I have split it into two files which are linked using Sonic Pi's cue and sync commands, so that they play seamlessly one after the other. I spent some time analysing the music so that bars which were repeated only had to be coded once. Three parts were used, one for the left hand bass, one for the right hand and one for the clarinet tune, which also required a different procedure to play the notes because it was sample based. An extra part was added for the penultimate 2 bars where the left hand piano part was too complex to play as a single part.
SP files are at: https://gist.github.com/rbnpi/339eb49c5becd583a438

Bolero by Ravel for Sonic Pi

This piece generates number in the Fibonacci Sequence where each new number is the sum of the previous two. The numbers are converted to binary using a recursive function and then these are used to control the playing of two notes. The binary digits are read progressively from each end of the binary number. If the digits are the same the first note plays, if they are different the second note plays. The pitch of the first note is controlled by its position from the start of the number. The pitch of the 2nd note is controlled by its position from the end of the number. In each case the pitches are taken from a ring based on notes from either the :e2 :minor_pentatonic or :harmonic_minor scales.
Further differences are introduced for the pan position and cutoff of each note, and one note has a random +/- 1 octave shift applied.
The piece cycles through the first 50 Fibonacci numbers twice before stopping.
A regular rhythmic drum and cymbal reinforce the relentless momentum.
The code can be downloaded from https://gist.github.com/rbnpi/f76c34cfb587d7293980b45aa1e6e62c

Chord Progression with Arpeggios

Monsterelfe