[_kb]

Those wax cylinders are a modern hack. The curved surface distorts the real artistic intent. The only way to appreciate the true beauty of sound is a the purity of soot etchings on a phonautogram.

[nntwozz]

I will add this to my repertoire :)

I had a good laugh listening to the sample at https://en.wikipedia.org/wiki/Phonautograph

The sound is very pure indeed.