Pigtonix Mothership 2 is a guitar synth pedal that claims to offer "world's fastest pitch tracking circuit". With 3 oscillators, portamento, filter and an external expression pedal  (or CV) input for additional control, it could just be what you need.

Teddy Kumpel takes it through its paces in this latest video.

Price $249

Features:

• Triangle, Square, SUB, voices
• World's Fastest Pitch Tracking Circuit
• Variable Amplitude Tracking Sensitivity
• Glide control for Pitch Following Portamento
• Hard Sync Function w/ Glide Modulation
• TRS Expression / TS CV input (0-5V range)
• SUB output removes sub-octave from main output
• 18VDC operation (300mA power supply included)
• True Bypass

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