Go to an open rehearsal.

Theyre usually pretty casual, too.

Heres a non-comprehensive list of open rehearsals of orchestras across the nation.

Visit the websites or call the concert halls for the most up-to-date information.

Also, these are working rehearsals, so guests should use low voices and be respectful.

California

La Jolla Symphony and Chorus: Mandeville Auditorium, UCSD, La Jolla.

7 PM on most Fridays before concert weekends.

Los Angeles Philharmonic:Hollywood Bowl, Los Angeles.

9:30 AM on Tuesdays and Thursdays beginning this week through mid-September, viaRed Tricycle.

Call the Monday before to confirm days and times.

San Diego Symphony Orchestra:Copley Symphony Hall, San Diego.

Recommended for high school and college students.

Select dates before Jacobs Masterworks concerts.

Santa Cruz Symphony:Santa Cruz Civic Auditorium, Santa Cruz.

7:30 PM on various dates.

Colorado

Fort Collins Symphony:Lincoln Center, Fort Collins.

The Thursday prior to each Masterworks concert.

National Repertory Orchestra:Riverwalk Center, Breckenridge.

Florida

Tallahassee Symphony Orchestra: Ruby Diamond Concert Hall, Tallahassee.

Dates will be posted soon on the website.

Georgia

Columbus Symphony Orchestra:Bill Heard Theatre, RiverCenter for the Performing Arts, Columbus.

12:30 PM on select Saturdays.

Pay what you’re free to.

Illinois

Grant Park Orchestra and Chorus:Jay Pritzker Pavilion, Chicago.

Most TuesdaysFridays, June 11-August 16.

Massachussetts

Boston Symphony Orchestra:Boston Symphony Hall, Boston.

10:30 AM on various Thursdays.

(Free pre-rehearsal talks begin at 9:30 AM.)

Tickets will be on sale August 5.

New York

New York Philharmonic:David Geffen Hall, New York City.

9:45 AM on various dates.

Tickets are $22.

Texas

San Antonio Symphony:H-E-B Performance Hall at the Tobin Center, San Antonio.

For middle, high school and college students.