Hi @vinodv,
Converting a single chord, where three or four notes are playing at the same time for a specific length, is fairly simple as Martin has demonstrated in the ‘custom chord’ example that he posted. That is one way of playing three notes at the same time, all with a specific release time.
If you haven’t already, I’d highly recommend working through the tutorial in the app (even if it’s a bit at a time). It’s great at demonstrating things like this, and it’s been designed to be very easy to go through. (Did you manage to have a look at the section introducing notes and melodies that I suggested in your other topic? (Mozart/Titan music Line 1))
Combining several chords and other notes into a semi-complex multi-voice piece with multiple melodies, such as the one you’re aiming for, is definitely possible - you just need to know how to play different melodies at the same time - which is where things like live_loop come in. That’s all explained in Chapter 9. (For example, maybe you’d have one loop for left hand and one for right hand, or maybe even more if the melodies are sufficiently complex…)
There is a section in the tutorial towards the end that takes a classical melody and walks through translating it into Sonic Pi code. (Appendix A.7, ‘Bizet Beats’). This may be helpful to you to some degree - depending on how familiar you are with Sonic Pi syntax you may need to jump back and work your way through earlier parts of the tutorial to make things clearer. (It’s designed to be ideal to work through start to finish). The Bizet Beats chapter doesn’t strictly deal with multiple melodies playing at the same time, but it may give you some of the idea of the translation process at least.