I used an M-3 (with a Leslie 147RV) for quite a while...it was the usual spinet style with the shorter pedal board, drawbars for the two 44 note staggered manuals, and no presets whatsoever. It was, however a great little organ with the same sound as it's bigger brother, the B-3 and a really superb chorus/vibrato.

It has all the essentials for organ work, including harmonic percussion, although the shorter keyboards and one octave pedal board were sometimes a disadvantage. Still, the keyboards were beautifully made and very responsive.

It was also considerably lighter than a B-3.

One of it's close kin, the M-102, was used by Matthew Fisher (Procul Harum) to record the enduring rock classic, A Whiter Shade Of Pale, so these instruments did have that legendary Hammond sound.

Ian