The LilyPond sources of the Bach pieces in midis/ marked *, as the
Mutopia Project publishes them under
ftp/BachJS/, one folder each, unedited. midis/tools/bach_ornaments.mjs (and
bach_goldberg_form.mjs, bach_hands.mjs, sheet/tools/goldberg.mjs,
sheet/tools/score_midi.mjs) read them; a folder that is missing is fetched
again from Mutopia (its .done lists the files fetched).
Each file’s header names its typesetter and its licence: Creative Commons
Attribution-ShareAlike 3.0 or 4.0, or public domain. kern/ (CCARH’s encodings
of the Bach-Gesellschaft edition, from humdrum-tools/bach-wtc on GitHub, which
states no licence) is not kept: it is fetched as it is needed.