John Alexander Fuller Maitland,
Dictionary of National Biography…
(1888)
“ In 1589 Byrd's ‘Songs of Sundrie Natures’ and the first book of his ‘Cantiones Sacræ’ were published by East at the sign of the Black Horse in Aldersgate Street. In the following year the same composer contributed two madrigals to Thomas Watson's ‘First Sett of Italian Madrigalls Englished,’ as he had previously done in the case of ‘Musica Transalpina,’ and in 1591 the second set of Byrd's own ‘Cantiones Sacræ’ was issued by his assignee. In 1591 East printed a new edition of the psalter of William Damon, the first issue of which had been published by John Day in 1579. ”
