 Peerson 's powerful patrons enabled him to print and publish a considerable quantity of his music , although little remains today . The only four extant keyboard pieces – " <unk> " , " The Fall of the <unk> " , " Piper 's <unk> " and " The <unk> " – appear in the Fitzwilliam Virginal Book ( c . 1609 – c . 1619 ) , one of the most important sources of early keyboard music containing more than 300 pieces from the late Elizabethan and early Jacobean periods . He also set to music some of William Leighton 's verses , written by the latter while in prison for debt . Together with works by other composers , these were published as The <unk> and <unk> of a <unk> Soule in 1614 . This was followed two years later by <unk> <unk> , with texts assembled by the Reverend Thomas <unk> mainly using psalm texts in the English language . 
