bebung การใช้
- When a clavichord key is pressed, a small metal pitch both above and below the nominal note, clavichord " bebung " can only produce pitches above the note.
- It was large instruments such as these that many late 18th-century German composers ( such as C . P . E . Bach ) had in mind when composing for the instrument, with good bebung ability and a bright tone.
- From the standpoint of musical acoustics and scientific terminology, some instruments, such as slide trombones, unfretted bowed-string instruments, guitars played with slides and, of course, slide whistles, can change the frequency of their notes continuously, while others, notably acoustic keyboard instruments, are restricted to quantized ( stepped ) changes in pitch . ( The clavichord's " Bebung " is the one exception, but that is essentially ornamentation of a single pitch, not a glide . ) Some instruments, such as the clarinet and saxophone, can produce a continuous pitch ( frequency ) change, although their characteristic design is to provide distinct pitches.