River Flows in You by Yiruma is the piano classic every other kalimba owner dreams of playing. The tempo is moderate, but the core figure — a quick alternation of two notes — needs confident work from both thumbs, so take it on after your first easy songs.

The arrangement relies on the low F3–B3 tines (21 keys); on 17 the player will offer a transposition. Learn it phrase by phrase: the main theme repeats, and once you own it at 50–60 % tempo in Learn mode, most of the piece is done. Evenness matters more than speed — speed grows on its own.