This may be only a kit harpsichord (I’ve made several of them myself), but it has a nice enough sound (hopefully better still, when I’ve finished with it!) and deserves the same rigour of set up as any instrument.

So, I’m working from the base upwards: key frame, key rest baize/felt, key levelling, key-jack adjustment felts – the latter seen here in the glueing & trimming process:

Sellotape as clamp cousin (1st removed)