This is a realization of Solresol (a very old musical conlang) that uses a single segment for each note, of which there are only seven (stressed and unstressed). It explicitly allows for multiple presentations in sound, color, writing and so on, and this new system provides a more compact and pleasant way to speak the language than simply naming notes. Something quite like this already exists (called "ses"), but it doesn't cover stress or word boundary and contains diphthongs when none are necessary.

Every note stress combination has a consonant and vowel form. Note that the note names are in French and circumflexes are used for accents, though you may use others. Pronounciation is IPA with some allophonic leniency (<w> and <y> are provided as easier-to-type alternatives).

Words are formed by alternating between consonant and vowel forms, so words look like V, CV, VCV, CVCV, VCVCV and so on. Word boundaries can optionally be indicated by a glottal stop/fricative or similar sound.

Mo ato mɔtu Ɛfɛ.

/mo ato mɔtu ɛfɛ/

do-ré fa-la-ré do-mi-la-do sol-ré-sol

I     can      speak       Solresol

I can speak Solresol. (Sort of.)

I created this system as a better way to sing it lyrically (i.e. rather than as pitch). It goes a long way in making the language comfortable to use (since the names of the notes are 2-3 phonemes each in the regular form).

Edits: transcription errors, added more alternative forms