You should check out the various available voices, selectable with the "-v" switch. While you're at it, let it sing In The Hall Of The Mountain King for you:

You should check out the various available voices, selectable with the "-v" switch. While you're at it, let it sing In The Hall Of The Mountain King for you: say -v Cellos Dum dum dum dum dum dum dum he he he ho ho ho fa lah lah lah lah lah lah fa lah full hoo hoo hoo