Yamandú Costa. Austin Classical Guitar Society presents Brazilian guitar phenom Yamandú Costa, who straddles the line between the classical guitar repertoire and style and jazz. Costa's recent shows in New York have sold out in record time. On his lightly amplified seven-string classical guitar, Costa will play a concert of works by well-known Brazilian composers along with his own compositions. 8 p.m. Saturday. Northwest Hills United Methodist Church, 7050 Village Center Drive. $25-$50. www.austinclassicalguitar.org.

"Czech It Out." Violinist Charles Wetherbee, cellist Gregory Sauer and pianist and Austin Chamber Center artistic director Michelle Schumann will perform works by celebrated Czech national treasures including Dvorak's "Dumky" Piano Trio in E Minor. 7:30 p.m. Saturday. First Unitarian Church, 4700 Grover Ave. $25. www.austinchambermusic.org.

"TEMP Goes the Full Monteverdi." The Texas Early Music Project celebrates the music of Monteverdi with excerpts from four of his operas as well as large-scale works such as "Hor che'l ciel e la terra" and the popular "Beatus vir." 8 p.m. Saturday at First English Lutheran Church, 3001 Whitis Ave. 3 p.m. April 29 at First Presbyterian Church, 8001 Mesa Drive. $15-$20 ($5 students at the door only). early-music.org .

Texas Young Composers Concert. The Austin Symphony Orchestra plays nine new short orchestral works by composers from around the state who are 18 years old or younger. 7:30 p.m. Thursday. Dell Hall, Long Center, 701 W. Riverside Drive. $8. www.austinsymphony.org.