Yes, CMME (www.cmme.org) is now future-proof: verovio supports the import of CMME XML files, being a de facto CMME2MEI-converter! 🙂
👉 https://book.verovio.org/toolkit-reference/input-formats.html#cmme
We spent a lovely couple of days in Paris fixing this 🤓 Kudos to David, Laurent, Anna, Martha, Frans and the support of CESR Tours / Biblissima 🙏
Input formats
When data is loaded into Verovio with no input format specifies, it tries to detect it based on the initial content of the data. MEI is assume to be the default format if auto detection fails. In such cases, the format can be given explicitly with the option --input-from (or -f).