What is a Sib trumpet?

Slight expansion on the answer below… Some cultures use solfege syllables (do, re, mi, etc.) instead of letter names. C is do, D is re, etc. B would be ti, or si in some countries. read more

It was known as the "nobleman" among musical instruments, because trumpet performers stood at the king's right hand. In English manuscripts of the thirteen century, the trumpet appears as a straight cylindrical tube, made of metal with a flaring bell at one end. read more

Silver Sand Rag sheet music for Trumpet-Trombone Duet, from Eight Notes. And one last source, I found ten duets for the trombone and trumpet in 10 Jazz Duets for Trumpet and Trombone. read more