SingLet System

Nature Notes

Natural SingLets are A, B, C, D, E, Fi, and G. In pronunciation, these correspond to /eɪ/, /bi/, /si/, /di/, /i/, /fi/, and /dʒi/.

Only F shifts away from its ordinary letter-name pronunciation, changing /ɛf/ into the smoother /fi/. This keeps the natural-note layer closely tied to familiar letter identities while improving singability where it matters most.

The SingLet™ row and SingLet™ syllables such as Fi, Cah, and Fah use the branded syllable family. Note names, staff notation, and the other comparison rows remain in their conventional forms for readability.

Sharp and Flat Accidentals

Sharp SingLets are A♯→Ah, B♯→Bah, C♯→Cah, D♯→Dah, E♯→Eah, F♯→Fah, and G♯→Gah, all rhyming with /ɑ/ as in “grandma.” Flat SingLets are A♭→Aeh, B♭→Beh, C♭→Ceh, D♭→Deh, E♭→Eeh, F♭→Feh, and G♭→Geh, all rhyming with /ɛ/, assigned to the syllable “eh.”

At this tier, the A family stays vowel-initial with no consonant onset before its vowel, while the C and E families keep the consonant onsets /s/ and /j/. That preserves a stable pitch-class identity even as the rhyme changes for sharp versus flat spelling.

Double Sharp and Flat Accidentals

Double sharp SingLets are A♯♯→Aw, B♯♯→Baw, C♯♯→Caw, D♯♯→Daw, E♯♯→Eaw, F♯♯→Faw, and G♯♯→Gaw, all rhyming with /ɔ/ as in “law.” Double flat SingLets are A♭♭→Aoo, B♭♭→Boo, C♭♭→Coo, D♭♭→Doo, E♭♭→Eoo, F♭♭→Foo, and G♭♭→Goo, all rhyming with /u/ as “oo” in “zoo.”

This second tier moves one step farther along the vowel ladder, extending the same onset identities into darker and rounder rhymes.

Triple Sharp and Flat Accidentals

Triple sharp SingLets are A♯♯♯→An, B♯♯♯→Ban, C♯♯♯→Can, D♯♯♯→Dan, E♯♯♯→Ean, F♯♯♯→Fan, and G♯♯♯→Gan, all rhyming with /ɑn/ as in “Don.” Triple flat SingLets are A♭♭♭→Aen, B♭♭♭→Ben, C♭♭♭→Cen, D♭♭♭→Den, E♭♭♭→Een, F♭♭♭→Fen, and G♭♭♭→Gen, all rhyming with /ɛn/ as in “pen.”

This third tier extends the system into VN forms, adding a nasal coda while keeping the same pitch-class onsets and sharp-versus-flat contrast. In this tier, forms such as C♯♯♯→Can and C♭♭♭→Cen keep their SingLet pronunciation with /s/ rather than ordinary English /k/.

Quadruple Sharp and Flat Accidentals

Quadruple sharp SingLets are A♯♯♯♯→Aong, B♯♯♯♯→Bong, C♯♯♯♯→Cong, D♯♯♯♯→Dong, E♯♯♯♯→Eong, F♯♯♯♯→Fong, and G♯♯♯♯→Gong, all rhyming with /ɔŋ/ as in the English word “song.” Quadruple flat SingLets are A♭♭♭♭→Aung, B♭♭♭♭→Bung, C♭♭♭♭→Cung, D♭♭♭♭→Dung, E♭♭♭♭→Eung, F♭♭♭♭→Fung, and G♭♭♭♭→Gung, all rhyming with /uŋ/ as in “ung” from “Kung Fu.”

This fourth tier completes the current SingLet system, again preserving the same onset map while extending the rhyme ladder to a final nasal pair.