Melodica by brunobrgs
License: Custom License - You are free to use the instrument in Renoise, for commercial or non-commercial purposes. Distributing/selling the samples or the xrni file is forbidden.
This is sampled from a 37-key Hohner Ocean Blue melodica. It's a nice instrument for solos and its timbre is something between accordion and harmonica.
Listen to Acoustic Work to see it in action.