Concierto Evocativo (1991)

...Concierto Evocativo...shows great imagination and artistry....Without relying on the colors and textures of percussion, wind, or brass instruments and featuring a solo instrument not usually counted among the 'evocative,' Sierra fashions music that is packed with energy and interesting innovation....What is remarkable is the way he played the texture of the horn and the strings against each other.

Sierra's horn concerto is a deft, provocative and soaring lyrical exploration...