The Tenor from a set of 3 partbooks (of 4 or perhaps 5 - there being pieces for 4vv and 5vv; the fourth, Bassus, book now lost; if there was a Quintus it was lost by 1609 when the set was catalogued). The books contain motets, madrigals (French and Italian words), a Miserere, an Anthem in English, and some instrumental 4-part fragments in quasi-score, which Milledge categorically states are not in Gerarde's hand.
The MSS. belonged to (John, Lord) Lumley; Lumley cat. f. 418, the set then containing four volumes.