delete psalmody according to Korejs

useful Czech vernacular chant resource, but not created
by the In adiutorium project and non-free
delete obsolete files

- old resources for the midday hour - included in larger sets
- opening verse - too
- the old, non-chant invitatory attempt - dropped
rake: sanity check: check music/lyrics length
ids
code style fixed

was valid lilypond code, but not the way I am used to write
and my tools are used to parse
typo fixed