David Thomas (composer)
David John Thomas (15 April 1881 – 13 May 1928), often known by his bardic name of "Afan", was a Welsh composer, conductor, and organist.
Thomas is remembered mainly for his hymn tunes and songs such as "Drosom ni" and "Cymru fach i mi". His other works include a cantata, "Merch y Llyn" ("Lady of the Lake"), and a choral work, "He fell among thieves", with words by Sir Henry Newbolt.