This article is from the Bagpipe FAQ, by Denise McNickle email@example.com with numerous contributions by others.
The Scottish Small Pipe (SSP) is a bellows-blown instrument and a sort of
"cousin" to the GHB. Scottish small pipes usually come with three drones, but
in most cases there will be a bass, baritone, and tenor drone as opposed to
the 1-bass 2-tenor GHB setup. SSP chanters come in a variety of keys, with A
and D being most common. Chanter fingering is similar to the GHB.