FRIENDS OF MAVERICK CONCERT.

(516-671-6263) MAVERICK CONCERTS Woodstock, June 30-Sept.

Offering competition on the same day are MAVERICK CONCERTS and the ROSSETTI QUARTET, Woodstock, N.Y., (845)679-8217, and MUSIC MOUNTAIN and the BLAIR STRING QUARTET, Falls Village, Conn., (860)824-7126 or www.musicmountain.org.

(Holland) MAVERICK CONCERTS (Sunday) This concert series near Woodstock, N.Y., offers its performances in an open-backed barn that allows the sounds of nature to mingle with the music.

MAVERICK CONCERTS.

Also marking round numbers this year is MAVERICK CONCERTS in Woodstock, N.Y., which opens its 90th season on Saturday with a group that lives up to the festival's name, the CONTRASTS QUARTET (that would be clarinet, violin, cello and piano), performing Beethoven, Kernis, Schubert and Schickele.