'Send audio from Node backend to frontend

I have Node/Express server set up in which several thousand audio files are stored within the src folder. I currently have a route set up that sends JSON data in the response object. I wish to also send an mp3 audio file that can be parsed at the front end and be converted to an audio object. I cannot figure out how to encode the audio file such that it may be sent. I have looked into Blobs (these don't seem to be possible in Node) and converting the binary file into a string that may be sent as part of the response body.

Any ideas as to how this may be possible?



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