Wow that is an incredible help. Thank you all so much. What a joy.

I will need a bit more time to go though all different objects to have a max. learning input.

Very great:)

@ingox Thank you for the reply and your post. The number box (at the end of the patch ) from 1-6 works fine. But to transfer it to the right sound is still tricky for me.
Press d = c1 ,
Press s= d1
Press ds= e1 (notes)
is what I want. but as soon I press ds together it reads as well each key individual and change the sound back to c1 or d1 and is not staying on e1.
I am trying around with a metro which is triggered by "ds" and with a Spigot object, blocks d + s to function.
As soon I am a functional step further I will post it here. Tricky control situation + I am quite new with Pure data.
Thanks again

Hi.
I will just try to set a similar question under this thread as the answers given before had a good input to me.

I want to have 6 different notes played by having 3 buttons (each one single + the three combination pressing two keys)

So far my patch works. But when I press a key-combinations (in my example "s + d" it jumps back to the frequency of one or the other of the key but it is not staying with the frequency I set the key-combination.

It would be wonderful if somebody can give a hint.
Thank you
Tilman