5-1. Music never stops: Loop & Live_loop

5-2-1 Scale, Chord in Sonic Pi
(Part 1)

5-2-2 Scale, Chord in Sonic Pi
(Part 2)

5-3 if you know how to use if

5-4 Green Soft-IC: function

5-5 Mysterious Voices

Cafe time: Suer- Energetic Bach Prelude in C