The year 1604 in music involved some significant events.
- Thomas Bateson - The first set of English Madrigales: to 3. 4. 5. and 6. voices
- John Dowland - Lachrimae, or Seaven Teares figured in seaven passionate pavans, with divers other pavans, galliards and allemands, set forth for the lute, viols or violins, in five parts
- Thomas Greaves - Songs of Sundrie kinds ... Madrigalles, for five voyces