ALTERNATE FRONT C SHARP KEYS
Some players find an alternate to the thumb C sharp to be desirable for certain passages and fingerings. This option adds a tone hole to the front side of the instrument. Two locations for the spatula are available, as well as a combination of both. 

Alternate C sharp for Left Hand Little Finger:  This option places a spatula beyond the low C sharp of the bass joint. 

Alternate C sharp for the Right Middle Finger:  This option places a spatula between the first and second finger spatulas for the right hand.  The B flat trill key must be deleted with this option. 

Alternate C sharp for both the Left Little Finger and the Right Middle Finger:  This combines the two individual alternate C sharp options together.