Dmitry Novikov on X: "Brand new Yamaha Seqtrack Looks like an excellent OP-Z replacement to me. https://t.co/l1RbgdJN4U" / XDmitry Novikov on X: "Brand new Yamaha Seqtrack Looks like an excellent OP-Z replacement to me. https://t.co/l1RbgdJN4U" / X