# Can one voice sing two notes?

Overtone singers shape the mouth to bring out one harmonic, and a melody seems to float above a steady drone. It shows how much of what we call a note is a choice about which part of a sound to follow.

Connects to:
- [Overtone and undertone singing](https://mapideas.org/i/mu_overtone)
- [The harmonic series](https://mapideas.org/i/mu_harmonics)
- [Resonance and formants](https://mapideas.org/i/mu_resonance)

Source: https://mapideas.org/i/q_mu_voice · open on the map: https://mapideas.org/#q_mu_voice