A bass guitar checking the tuning on the low A string.
Unplugged electric guitar - Tuning
classical orchestra tuning up prior to performance or rehearsal
Radio turned on, tuned and turned off
orchestra tuning up at the start of a classical music concert in a church, with coughing and settling ...
orchestra tuning up during a classical music concert in a church, with talking and settling audible from ...
TV tuning (turns on/channel). Vintage recording.
FM stereo radio tuning. Vintage recording.