In another message I was talking that on my system (win7 professional 64 bit) the synth “piano” does not sound.
I guess the synth “piano” uses the plugin (of supercollider) MdaUGens.
In the log directory of sonic pi , the file scsynth.log contains 73 error messages like these :
ERROR: LoadLibrary ‘C:/Program Files (x86)/Sonic Pi/app/server/native/plugins\AmbisonicUGens.scx’ err
"The specified module could not be found"
there are practically 73 plugins that are not recognized including MdaUgens.
In the path of the error message I see that the backslash it’s incorrect.
Is this the problem ?