There are better portamento circuits out there, but they’ll probably involve op-amps. As a quick aside, you can make a rudimentary keyboard with just a bunch of push buttons and voltage sources.

The circuit of a voltage divider may be drawn with the two resistors vertical, not horizontal. If there are two resistors in series across a voltage source, then the circuit is a voltage divider.

Voltage (V) is the ‘push’ which makes ... Electric circuit An electric circuit contains a power source and devices, which are connected together in a loop using wires. Electrical component ...