Add support for WAV files with appended metadata #113
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Some software like Audacity, MP3tag, and Serato DJ store metadata in WAV files by appending ID3 tags in a new RIFF chunk. Some discussion on this here.
I added support by seeking to the start of the appended metadata, then recalling the parent function. An earlier commit implements ID3-appended WAV support without recursive functions if they should be avoided, but the current implementation supports all metadata types. I am happy to write tests for this as well.