CFA-Sound updates MonoGrizzly to v1.5

CFA-Sound has updated MonoGrizzly to version 1.5.

Changes:

• New GUI.
• Heavy CPU-usage reduction.
• Duophonic mode exchanged to polyphonic mode(max. 8 voices).
• Internal improvements.
• FM mod for oscillator 2 & 3 added.
• New LFO targets.
• Second tube drive stage added.