In what key signature is singing written in, and how do I adapt for alto saxophone?

The alto sax part needs to be written in the key of D Major (2 sharps). The alto transposes, and It's sounding pitch is a major sixth below its written pitch. When the vocals sing do-re-mi in F (notes F-G-A), the alto player must see this in D.

1. What key signature is alto sax?
2. How is saxophone music written?
3. How many keys does a saxophone have?

What key signature is alto sax?

The alto saxophone, also referred to as the alto sax or simply the alto, is a member of the saxophone family of woodwind instruments invented by Belgian instrument designer Adolphe Sax in the 1840s, and patented in 1846. It is pitched in E♭, and is smaller than the tenor, but larger than the soprano.

How is saxophone music written?

The written range for all saxophones is the same. All saxophones read in treble clef, and their written range extends from B flat below the stave to F above the stave (although some saxophones have a key for F# above this or even G, and the range can be extended through use of altissimo).

How many keys does a saxophone have?

The saxophone consists of four fundamental parts: the neck, the body, the U-shaped bow, and the round, flared bell. Along the length of the instrument, there are 25 tone holes.