96 bass LMM
This is a East German made Weltmeister Meteor from the 70s/80s. It has a modest size, but has a nice big sound and plays very well. It is a LMM reed configuration. The left hand bass notes goes down to a very deep "G" below the normal "C".
Work I've done includes removing and cleaning all reeds. I replaced the mylar valves with Italian leather reed valves and re-waxed all reeds. I adjusted the action. The accordion is fairly recent made so the padding was in fine shape. I then tuned the accordion to A-440. The sharp middle set of reeds I tuned to 24 cents sharp at the bottom, progressively to 17 cents sharp at the top for a strong musette.