Alternate fingering for B
To use in fast sequences, trills and tremolos.
17 and 18 is fingering for B flat,
12 is the 3rd of the 4 keys for trills and tremolos.
Apply the key in all common scales to train skill and velocity.
Try to find more alternate fingerings (internet)
Alternate fingerings is a more complex knowledge for clarinetists. The use of different combinations of keys to produce the same sound is advanced knowledge. It is a new pattern of knowledge for novice players and a unlimited field of ideas and possibilities for advanced players. (how many combinations could one make with 30 or more keys?) Numbering of keys is a more complex knowledge. Student has to know or get to know the language and signs needed to use this artifact.
The knowledge of alternate fingering is a door to using alternate fingering when playing. The student uses the artifact to train the alternate fingering and use it in performing. Knowing how to write quick notes of fingerings is helpful. If student does not know how to apply this artifact or how to read it, then search on internet for relevant sources.
The community is the players of the bass clarinet, teachers, composers, band leaders etc. The community learns in organizing workshops, play-ins, festivals, courses, concerts, and players do share possibilities and smart solutions. Some members of the community publish on internet in groups, blogs, video or write books. Part of the community is involved in development of better instruments.