Chamber pipe
Bagpipe, bellows-blown: 2 stocks (a: single chanter / b: 4 drones in 1 stock)
Bellows-blown; According to Grier named "not for a bed chamber as is generally believed", but rather after the air chamber of the drone stock, which contains a Scroll, with which the air can be directed to stop the drones or the regulator, if required, whilst playing; NB: ➺ Parlour pipe, Reel pipe.
3 drones (A/B, d/e or D/E, a/b) and 1 regulator (b, d¹, e¹, f¹, g¹, a¹).
NB: Example(s) to be replaced with staff-notation.