Series M1 and T3 in 5 octaves is very beautiful, synths have the curve and a very nice presentation, pleasing to the eye.
I had an M1 early 90s that I sold and I just buy a T3Ex offering better management of sound through the disk. I go back 15 years ago by rediscovering the sounds of those in the T3 + M1 that I did not know and I am very pleasantly surprised.
Very simple, very simple editing sounds ... With the M1, I just used the manual and with the T3, I find myself without a problem (such as cycling)
For sounds, some aging is normal but at the same time a sound is a sound, large or narrow, it can find its place in a mix.
The sound palette is very broad, beautiful tablecloths with breathtaking! The bass sounds are incredible and battery kit too.
In fact for me, the sounds that are oriented aged brass ... Everything else is great.
The grand piano sound is impressive, bcp more than the M1, which has been widely used anyway.
I rediscovered this series of synth with great pleasure and fiddling sounds, I think the results will be "atomic"!
Very nice synth.