• The tool would be easier to understand and get started, if you pre-populated it with some example songs (like the example notebook you linked in the post here, but which AFAICT isn't reachable from the tool itself). Even better if selecting a Raag/Rāga would automatically populate with a representative song in that rāga :-)
• Is it only meant to be used from mobile? From a laptop, the keyboard seems to do nothing (hitting backspace, etc).
• Really love the feature when selecting a rāga will set all the svaras to those of that rāga — if the keyboard worked, this would mean one could mash random keys on the keyboard and get something that sounds somewhat nice / appropriate :-) (I can kind of do this on mobile already! But on mobile the finger tends to move less randomly…)