What is a handpan?
A handpan is a steel instrument made of two shells joined at the rim, played with the hands on the lap. The top shell carries the ding and a ring of tone fields; the bottom one has an opening that makes the body resonate. The first instrument of this kind, the Hang, was created in Bern, Switzerland, in 2000 by Felix Rohner and Sabina Schärer of PANArt, drawing on the steel pans of Trinidad and Tobago. Instruments made by other makers since are called handpans.
Handpan scales explained
Each handpan is built in one scale, named after its ding and its character. D Kurd, the bestseller, is a D minor scale with A as the lowest field: almost any sequence sounds musical. Celtic minor drops the sixth for a folk colour; Hijaz adds the augmented second heard in Middle Eastern and flamenco music; Pygmy is a five-note scale with a dark mood; Aegean is a bright major-sounding scale with a raised fourth.
Handpan, steel pan and tongue drum
The handpan comes from the steel pan of Trinidad and Tobago, played with sticks, with many more notes. The steel tongue drum, cheaper, is cut with tongues rather than hammered fields, and sounds closer to a kalimba. The handpan sits between the two: few notes, long sustain, played with the fingers.