The traditional accordion of choice where I live is the melodeon, a diatonic button accordion which I believe is unisonoric too. I'm not sure because I've never actually played one.
I've just learnt that there's going to be a melodeon making course in March. I was quite tempted by this as I would love to know more the insides of accordions. Unfortunately I don't really have the skills. One day maybe...
This may look like some kind of printing press but it's actually a Piano Melodico. Invented by Giovanni Racca from Italy they were made between the late 1800s up to about 1920-5. One of the problems of music boxes which use barrels or disks to contain the music is that the music will only last one turn of the barrel or disk. This limits them to playing only short tunes. The music for a Melodico though was contained in a book of folded cardboard with punched holes marking the notes. This meant that longer pieces of music could successfully be played.
This clip is from a
1958 concert. We see and hear the Oscar Peterson trio with Ray Brown on
bass and Herb Ellis on guitar. They perform together with Ella
Fitzgerald, with solos of violinist Stuff Smith and trumpetplayer Roy