Yamaha QX1 & QX3 sequencers | What are the differences?

My sound patches: https://espenkraft.com • Yamaha QX1 from 1984 and the QX3 from 1987. Both flagship midi sequencers of the 80s. Very advanced and very cumbersome to use, unless you put in the work and get muscle memory going. Support this channel on Patreon:   / espenkraft