Does the HPD-20 have built-in rhythms or a sequencer?

No. It has no pre-programmed rhythms or songs and no pattern sequencer. It is a performance and sound module, so you play it by hand or trigger it from external MIDI gear.

Can the HPD-20 record audio?

Yes. It can record and play WAV files, and it works as a USB audio interface over USB-B, so you can capture performances to a computer.

How does it connect to a computer or MIDI gear?

It has USB-B for computer audio and MIDI, plus standard MIDI and 1/4-inch jack outputs. A keyboard pedal input is also included.

Is the HPD-20 good for beginners?

It suits players who already have hand-drum technique, since the pads respond to how and where you strike. Beginners can use the preset kits, but the deep editing menus take time to learn.

How does it compare with a drum machine?

A drum machine builds patterns and songs for you. The HPD-20 is played by hand and focuses on expressive percussion sounds, so it complements rather than replaces a drum machine.