2025-2026 GSO Rehearsal Schedule
Wednesday Evenings 7:00pm-9:15pm
ALL REHEARSALS & PERFORMANCES ARE MANDATORY.
Promptness is a necessity so time is not wasted (plan on arriving 10 minutes early to warm-up and tune). Prior to each rehearsal a schedule will be posted at each school, on Google Classroom on the GSO website with the pieces to be rehearsed and the approximate times so students who do not perform in each work may leave quietly when finished.
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Fall Semester
GBS Sept. 3
GBS Sept. 10
GBS Sept. 17
GBS Sept. 24
GBS Oct. 1
GBS Oct. 8
GBS Oct. 15
GBS Oct. 22
GBS Oct. 29
GBS Nov. 5
GBS Nov. 12
GBS Nov. 19
GBS Nov. 21 (Friday)
Dress Rehearsal – Mandatory
GBS Auditorium
7:30 a.m. – 12:30 p.m.
GBS Nov. 23 (Sunday)
GSO Fall Concert
2:00pm – Call Time
3:30pm – Concert
GBS Dec. 3
GBN Dec. 10 – GBN Winter Concert
GBNSO Students Only
Holiday Assembly Day - Dec. 11 (Thurs)
GBN – morning
GBS – afternoon
3:15pm (Yearbook Pictures)
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Spring Semester
GBN Jan. 7
GBN Jan. 14
GBN Jan. 21
GBN Jan. 28
GBN Feb. 4
GBN Feb. 11
GBN Feb. 18
GBN Feb. 25
GBN March 4
GBS March 6 (Friday during school)
March 7 (Saturday AM)
Glenbrook Festival of Music – 7pm Concert
String Sinfonietta & Principal Winds/Perc only
GBN March 11
GBN March 16 (Monday)
Concerto Rehearsal - On CPA stage, 7pm
GBN March 17 (Tuesday)
Dress Rehearsal – Mandatory
GBN Center for Performing Arts
7:30 a.m. – 12:30 p.m.
GBN March 18 (Wednesday)
GSO Spring Concert
6:00pm – Call Time
7:30pm – Concert
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Orchestra Banquet – Wed, May 20th @ GBS
6pm Social Hour / Dinner - 7:30pm Awards
All Freshman – Senior Orchestra Families Invited
ALL REHEARSALS & PERFORMANCES ARE MANDATORY.
Promptness is a necessity so time is not wasted (plan on arriving 10 minutes early to warm-up and tune). Prior to each rehearsal a schedule will be posted at each school, on Google Classroom on the GSO website with the pieces to be rehearsed and the approximate times so students who do not perform in each work may leave quietly when finished.
_________________________________________________________________________________________
Fall Semester
GBS Sept. 3
GBS Sept. 10
GBS Sept. 17
GBS Sept. 24
GBS Oct. 1
GBS Oct. 8
GBS Oct. 15
GBS Oct. 22
GBS Oct. 29
GBS Nov. 5
GBS Nov. 12
GBS Nov. 19
GBS Nov. 21 (Friday)
Dress Rehearsal – Mandatory
GBS Auditorium
7:30 a.m. – 12:30 p.m.
GBS Nov. 23 (Sunday)
GSO Fall Concert
2:00pm – Call Time
3:30pm – Concert
GBS Dec. 3
GBN Dec. 10 – GBN Winter Concert
GBNSO Students Only
Holiday Assembly Day - Dec. 11 (Thurs)
GBN – morning
GBS – afternoon
3:15pm (Yearbook Pictures)
----------------------------------
Spring Semester
GBN Jan. 7
GBN Jan. 14
GBN Jan. 21
GBN Jan. 28
GBN Feb. 4
GBN Feb. 11
GBN Feb. 18
GBN Feb. 25
GBN March 4
GBS March 6 (Friday during school)
March 7 (Saturday AM)
Glenbrook Festival of Music – 7pm Concert
String Sinfonietta & Principal Winds/Perc only
GBN March 11
GBN March 16 (Monday)
Concerto Rehearsal - On CPA stage, 7pm
GBN March 17 (Tuesday)
Dress Rehearsal – Mandatory
GBN Center for Performing Arts
7:30 a.m. – 12:30 p.m.
GBN March 18 (Wednesday)
GSO Spring Concert
6:00pm – Call Time
7:30pm – Concert
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Orchestra Banquet – Wed, May 20th @ GBS
6pm Social Hour / Dinner - 7:30pm Awards
All Freshman – Senior Orchestra Families Invited