Saltarelle Nuage DG this well known model has three sets of treble reeds arranged LMM with a separate stop for each set so any combination can be selected. It has two independent bass stops one for thirds in the chords, and one for the low bass reed. The treble side has a 23 button flat keyboard and the bass has the standard 8 buttons. This example is in cherry wood and has light use. There are a few small marks from use which you can see in the photos. Includes a hard case and pair of padded straps.