Q.no

 i do not know anyhting about programming.

the coins make you advance a little to the right,so you can regulate with the obstacles that pushed you to the left and regain position by coins.

The ingame song is a draft i played with my  plastic ocarina
( i regret not going to get the real one,an not taking severla recordings to choose from), gives you the melody idea. someday i will improve it! <3 (hopefully)

the menu one will be a repise ,quieter ,shorter version of the ingame song. for now it has the  song  partially recreated  in bosca Ceoil. will redo the ocarina melody there,if i can.

All assets by me.

Thanks to Nerity for the moral support and help and Debo with bits of coding and tutorials links :D