Clarinet Fingering Chart
One of the most helpful tools you can have as a clarinetist is a Clarinet Fingering Chart. With a clarinet fingering chart, you can quickly check or learn a fingering for a note you are uncertain of. More advanced players may find a clarinet fingering chart that focuses on the altissimo notes, which tend to have multiple options for possible fingerings.
Luckily, most beginning clarinet methods include a comprehensive fingering chart that includes all the standard fingerings. Most of these charts do not extend above the altissimo G, however, which is where you should invest in a more advanced fingering chart:
Clarinet Fingerings: A Comprehensive guide for the Performer and Educator
Clarinet Pedagogy and History
High school clarinetists on up will find this to be a useful text.
The Circle of Fifths
A very useful tool in helping to understand the key signatures and the relationship between major and minor keys is the Circle of Fifths. Additionally, it can be used as a transposition tool. From the concert key, you can travel around the circle clockwise two letters to find your key on the clarinet. For example, if you are in the concert key of Bb, you would go around the circle clockwise two letters away from Bb, landing on C. Do just the opposite to find the concert key for the key signature that appears on your music. Example: your clarinet music is in the key of D, so you are in Concert C; you move counter-clockwise around the circle.
The Circle of Fifths sometimes is presented as the Circle of Fourths, but it is the same thing, just in reverse. Why? A perfect fourth is inverse of a perfect fifth.