* D major. This key is also a good option for low voices, and it is particularly well-suited for those who want to sing with a strong, powerful sound.
* E major. This key is a little bit higher than C major and D major, but it is still relatively low, and it can be a good option for those who want to sing with a brighter sound.
* F major. This key is a bit higher than E major, and it can be a good option for those who have a strong vocal range.
* G major. This key is higher than the keys listed above, but it can still be a good option for some low voices, particularly those who have a strong vocal range and who are comfortable singing in higher keys.