A better question might be to ask “Where is vibrato conventional on the French horn?” It's much more common in European playing, especially on the continent. Some Americans will use some vibrato, too, however. read more
Douglas Hill recommends in Collected Thoughts on Teaching and Learning, Creativity, and Horn Performance “the study of three distinct types of vibrato.” 1. First, there is an intensity vibrato used to intensify a musical line by pulsating the airstream. read more