A major update:
• Redesigned Library: improved UI with rename, backup/restore, split or keep tunebooks
• User Guide: tap on ? to the right of Library title or in Settings
• Sets & Playlists: group tunes, reorder, and set repeat counts (×1–4)
• Renders mid-tune key/metre/voice changes, part labels and endings
• Transpose a tune inside a set (tap on note to select tune first)
• Guitar accompaniment now plays across every tune in a set, in each tune's own metre
• Many stability fixes