Hey!well...i used to play alto sax but now i am switched to baritone and i have summer pieces to work on but i have no idea what this low note is....it is whatever is below a low D....anyway....i have no idea what it is or how to play so if anyone knows how to and could tell or knows where i could find out give me a shout.Thanks!

The note below low-D is...you dont know? wow. Its low C. On the lower-right pinky keys, its the bottom key, below the E-flat. You hold down low-D fingers and add that key