Blackheart

A free set of samples of a cello, treated as oscillators in a synthesizer. It's not intended to be a realistic cello library; instead the goal is to create more organic variations of classic analog synthesizer sounds.
Key features:

• Selectable number of unison voices - 1, 3, 5 or 7.
• Additional three-voice bow noise oscillator.
• Choice of single-cycle or long samples.
• Randomized sample playback start points and phase relationships between voices.
• All samples looped for infinite sustain.
• AHDSR volume envelope.
• Detune and width controls.
• Vibrato speed, depth, delay and fade.
• Low-pass filter with resonance and simple AD envelope.
• All controls mapped to MIDI CC.
• 40 presets including string sounds, basses, pads, plucks, leads and organs.