Hi, Case! To start retrieve something from melodica, forget about the piano and accordion; think about wind instrument like a saxophone or trumpet. This means – leading not fingers, but breath; ie phrase – exhale (pause) ; phrase – exhale ( pause). The primary form of this – Riff. You need to start exactly with this!Each note should be pronounced, and then she gets a sense.
Here’s my example: riffs alternate with quiet rhythmic fillers :