Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Chromatic scale:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

In 5-limit just intonation the chromatic scale, Ptolemy's intense chromatic scale[citation needed], is as follows, with flats higher than their enharmonic sharps, and new notes between E–F and B–C (cents rounded to one decimal):