So, interesting issue with pinmessage.txt on 6.6. You can use Enter in Notepad to make a new line, but since Notepad inserts both <CR> and <LF> into the document for a line break, you will see a ♪ character before the new line. Luma apparently doesn't recognize 0x0D as part of a new line, and only 0x0A, so any Windows user's attempts to create a pinmessage.txt with a new line to it will get that note symbol showing up.