Baroque bass notes, low C, George, Abete, McLeod, Carnovich, van der Kamp and Frederiksen

Here we have real singing, without any microphone to help the low notes to sound... enjoy it!
1. MICHAEL GEORGE,
* Db2 from the ode Now does the glorious appear, Henry Purcell
2. ANTONIO ABETE,
* C2 from Il Ritorno d'Ulisse in patria, Nettuno, Claudio Monteverdi
3. STEPHAN MCLEOD,
* 2 C2 from the motet for bass, Ab aeterno, Claudio Monteverdi
4. DANIELE CARNOVICH
* 3 C2 from Il ballo dell'ingrate, Plutone, Claudio Monteverdi
* D2-C2-D2 from the madrigal for bass, Io che nell'otio naqui, Claudio Monteverdi
5. HARRY VAN DER KAMP
* C2 from the lamento for bass, Wie bist du denn O Gott in Zorn auf mich entbrannt, Johann Christoph Bach
* B1-Db2 from the Lamento delle Regina d'Inghilterra , Giove, Antonio Bertali
* B1 from the motet for bass, Superbe Colli, Stefano Landi
* E4 from the cantata for bass, Da mihi Domine, Franz Tunder
* B1 from the same piece at the end
6. JOEL FREDERIKSEN
* C2 from the song Filli Vezzosa, Giulio Caccini ?
* C2 from the same piece at the end
* C2 from the song for bass Chi mi confort'ahimè, Giulio Caccini
* C2-Bb1-C2 at the end of the same piece
* C2 from the motet for bass, Superbe Colli, Stefano Landi
* D2-A1-D2 from the same piece