Garfunkel in need of sounds.

Hello you all! Maybe you heard about Garfunkel. It’s a Simon clone that I’m writing (so slowly…). Now, I need a help with sounds. Do someone help?

I need these sounds:

  • A (red, upper right, frequency=110Hz);
  • A (green, upper left, an octave higher than the upper right);
  • D (blue, lower right, a perfect fourth higher than the upper right);
  • G (yellow, lower left, a perfect fourth higher than the lower right).

All the sounds must have 2 versions: a duration of 300 miliseconds and another with 400 miliseconds.