Unlike Lea Nicholson, Old Man Lea isn’t a big fan of the concertina. His thing is more obscure synthesizers and in particular SuperCollider, which is:
“a platform for audio synthesis and algorithmic composition, used by musicians, artists, and researchers working with sound. It is free and open source software available for Windows, macOS, and Linux.”
OML operates in this area mainly under the monicker cambridgeBlueMan – note the Camel Case . Also note pronunciation is cambridgeBlueMan, and not cambridgeBlueMan.