I love it... being a musician, I'm very fond of musical terms as names. It's been on my list for a while, though sometimes I forget it's there. I would love to give at least one of
Off of your list, I like:
AriaCadence / Cadenza
Calliope Echo Etude
Harmonia /
Harmonie /
HarmonyJazz (though I prefer it as a nn, and on a girl)
Kyrie
Lira / Lyrica /
Lyra / Lyre
Madrigal (prefer this for a girl)
Melisma
Melody Nocturne
Nola Seraphine Serenade
Talea
Other musical names I like:
Aeolian (either)
Allegra (g)
Alto (b)
Ballad (g)
Bard (b)
Carol (g)
Cecilia (g; patron saint of music)
Celeste (g)
Chiesa (g; pron. kee-AY-zah)
Decima (g)
Dirge (b)
Dolce (g)
Dorian (b)
Flute (g)
Harper (g)
Kytte (either; pron. kit)
Lyris /
Lyric (g; I suppose these would fit in with the Lira set up there)
Mace (b; a rod used by a drum major, I guess it's not exactly a musical term, but whatever)
Minstrel (g)
Minuet (g)
Octavia (g)
Opera (g)
Pavan (either)
Piper (g)
Reed (b; as in, like, a clarinet or saxophone reed)
Rhapsody (g)
Sansa (g)
Selah (g)
Sonata (g)
Symphony (g)
Viola (g; I realize that it actually means violet, but I always think of the instrument)
Some of those I would never use on a kid; for example, I think Dirge would be much too heavy to use on a person, because of the connection with funerals and death and all. But I might use it on, say, a pet or a character or something. :)