Biography focused on the number and style of his madrigals from the Grove Concise Dictionary of Music entry at WQXR radio.

Entry from the Catholic Encyclopedia emphasizing his sacred output.

Brief biographical sketch, caricature, and summary of secular vocal music from Naxos.

Listing at The Lied and Art Song Texts Page with Italian lyrics and English translations for selected works.

Biography placing him among the great madrigalists with portrait from the Here Of A Sunday Morning radio program.

Detailed biographical entry with internal links to related people and topics from Wikipedia.

Karadar Dictionary entry with life, portrait, works, and MIDI audio sample of a madrigal.