It's completely open.
ghjkl
A D flat is a C sharp... which is nothing
Try harder...
G g a g c b
On the alto saxophone, B sharp is enharmonically equivalent to C. This means that while they are notated differently, they sound the same pitch when played. In practical terms, B sharp is typically used in music to maintain proper harmonic context, especially in certain key signatures.
d flat is the same as c sharp. so just the octive key
The notes are: G, A, B, C, D, C, B, A, G
you dont play any keys at all for middle c sharp. if you want the high c sharp its just the octive key.
C
F, g, a, b flat, c, d, e, f
High E High E High G High D C C B C B :))
The Alto Saxophone is in the key of E flat. That means that an E flat on the Alto Saxophone is the same pitch as a C on a piano or other concert pitch instrument.