"Soldiers then had always referred to the last call as 'Taps' because at the end of 'Extinguish Lights' there were three loud taps of a snare drum, " Mr. Villanueva said.

WSJ: Tapping into "Taps"

It was developed after the second world war when the bombarde was added to the Scottish pipe band that had been imported complete with highland bagpipes, snare drums and a great drum.

ECONOMIST: Celtic music

Those elements are traditionally performed by three instruments: a triangle, an accordion, and a zabumba, a drum pitched somewhere between a low snare and a small bass.

NPR: Northern Brazilian Tradition, New York Style

As well as its true analog internals, there is a PCM engine for punchy clap and snare sounds, and a choice of parameters to allow a catalog of different drum sounds to be generated.

ENGADGET: Korg announces Volca analog synth series, we go eyes-on