S.E. Shires Alessi Custom Tenor Trombone (TBALESSI)S. E. Shires STBALESSI Joseph Alessi Custom Tenor Trombone The S. E. Shires STBALESSI Joseph Alessi Custom Tenor Trombone is a professional large bore Bb F tenor trombone built for artists who need power, color, efficiency, and control at the highest level. Designed in collaboration with Joseph Alessi, Principal Trombone of the New York Philharmonic, this model brings together a lightweight, unsoldered two piece yellow brass bell, Shires Alessi rotary