Proposal to MMA

Don't know if this is the right way to do it, but indeed: I have a question.

Does it violate MIDI standards if - as far as I know - yet undefined Meta Events will be employed
for the purpose of defining Lyrics with more than one text in Standard Midi Files?
Let's call this feature PolyText.
I am especially interested in the 16 Meta Events   $FF <type> = $10 .. $1F <length> <text> .
Am I allowed to use these for my own purpose, without running the risk of endangering MIDI efforts of other people?
Please read this:

Lyrics / PolyText : META proposal

Hoping that you will answer this question.

With kind regards:

Han de Bruijn

P.S. MMA = MIDI (Manufacturers) Association . No response so far, though.