I have heard that bass voices tend to continue deepening well after puberty, sometimes into the early thirties. Is this true? I believe Geoff Castellucci once said in an interview that at eighteen he was proud that he could hit an E2, but now he sings the occasional F#1. Is he purely an anomaly, or is he an extreme example of a typical phenomenon?

For a quick follow-up to this, as an eighteen-year-old low baritone who can reach a D2 fairly consistently, is it reasonable to expect C2s and lower someday, or is this likely out of reach?

  • 2
    I've gained about a semitone at the low end in 40 years. [of course, to compensate I've lost a good half an octave off the top.] Don't hold your breath & don't wish too hard or you might just get your wish ;)
    – Tetsujin
    Commented Oct 25, 2023 at 18:44

1 Answer 1


Yes, a voice is not 'finished' at 18! Voices continue to mature in both timbre and range for many years.

However, I don't know that you can necessarily expect an increase: physiology, technique, and practice will have a part to play.

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