Band (Whole):
Band Instruments Demonstration Video (by US Army Band): https://www.youtube.com/watch?v=CCTeSjpDsIs
Flute:
Clarinet:
Saxophone:
Trumpet:
French horn:
Trombone:
Euphonium:
Tuba:
Percussion:
Middle School Band Websites:
Henry Middle School Band (Texas): https://sites.google.com/leanderisd.org/henryhawkband/home?authuser=0
Other:
Bandmate Chromatic Tuner app: https://sites.google.com/view/bandmatetuner/
It tells in your instrument pitch (sound)
J.W.Pepper (Band Sheet Music Company): https://www.jwpepper.com/sheet-music/welcome.jsp
Where you can search for band sheet music (a lot of music has a sample recording)