They're not too complicated, especially if you know "Doe, a Deer" from the Sound of Music. "Solfeggio" is a musical notation system where each of the eight pitches on the major scale is given a name: do re me fa sol la ti do.
The "lyrics" to the song are nothing more than the names of the notes of the melody:
"Solfeggio" lyrics:
Mi sol la
Re fa-re sol
Do me-do fa re
Sol sol (bongo roll...)
Mi sol la
Re fa-re sol
Do me-do fa re
Sol sol do (wham!)
Do mi fa
Si re-se mi
La do-la fa re
Sol sol (bongo roll...)
Do mi-do fa
Si re-se mi
La do-la fa re
Sol sol do (wham!)
Thanks for writing!
Ben Model