Keyboard, bass guitar, piano, and drums.
yes, yes you can
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Trombone. Or, since you specified bass a bass trombone.
The valves are used to change notes.
Yes, but there are trombones that do have valves. Bugles- no valves
The instruments are vocals, Bass Guitar, and drums
Valves for brass instruments weren't developed until around the year 1800.
Actually, a band is instruments such as brass, woodwinds, percussion, etc. without string instruments. A wind ensemble may or may not include the upright bass. An orchestra would include string instruments such as violins, violas, bass, cellos, and a few brass and woodwinds, and of course percussion.
I heard a piano, electric or bass guitar, bongos, and other instruments that I can't identify being played during the song.
in a string orchestra the instruments are: Bass Violin Viola Cello.
Most instruments are pianos, drums, bass, & viola.