The piano intro of In the End by Linkin Park is a riff people recognize from the first two notes. The tab is short — under forty seconds, almost no chords, moderate tempo — which makes it a great pick for beginners: you can put it together in a single session.

The riff uses a couple of low notes (G3 and A3) that only a 21-key kalimba has. On 17 keys, use transposition — the player will suggest a shift that fits your tuning. Then it's Learn mode at 70–80 % tempo and looping: repetition is what makes this riff hypnotic.