The first set of English madrigals to 3.4.5. and 6. voices: newly composed by Iohn Wilbye - Wilbye, John 1574-1638 (printed by Thomas Este, 1598)
In all partbooks, song 23 has: "Subdue hir hart". - Reproduction of original in the Folger Shakespeare Library. - STC (2nd ed.), 25619.5. - Signatures: [A]2 B-E4 2 [A]2 2 B-2 E4 3[A]2 3B-3D4 4[A]2 4B-4D2 [-4D2] 5[A]2 5B4 6[A]2 6B-6E4. - Six partbooks. At head of title page, part 1: "Cantus"; part 2: "Altus"; part 3: "Tenor"; part 4: "Bassus"; part 5: "Quintus"; Part 6: "Sextus"