You need to make sure that the hash file (the first file that you specified, e.g. .\hashes\music.txt) does contain the hash that you extracted by ethereum2john.py.
I think you didn't store the output of ethereum2john.py to the file. The content of the hash file must look similar to the hashes that you can find here: https://hashcat.net/wiki/example_hashes (search for 15700)
I think you didn't store the output of ethereum2john.py to the file. The content of the hash file must look similar to the hashes that you can find here: https://hashcat.net/wiki/example_hashes (search for 15700)