quarter tone revolution
Play beyond your limits.
Quarter tones on every note and scale.
Now for only $276
Quarter tones on every note and scale.
QUARTBACK nano
Premium note shifter, refined and crafted by
professionals engineers
explore new range
Give your music unlimited possibilities
with wider tone range.
live conversion
Convert notes easily when you are playing live
instruments
Connect with any electric-melodic instruments
new patent
Innovative and fully patented technology
low latency
Unique processing technology for a 0% latency feel
