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“Marching Band.” Wikipedia, Wikimedia Foundation, 7 Dec. 2019, https://en.wikipedia.org/wiki/Marching_band.
“Concert Band.” Wikipedia, Wikimedia Foundation, 30 Nov. 2019, https://en.wikipedia.org/wiki/Concert_band.
“Instruments of the Orchestra.” Arapahoe Philharmonic, https://www.arapahoe-phil.org/learn/resources-instruments-orchestra/.