
Sleep Stage 4B
[Intro] [64 BPM; D Dorian; use D E F G A B C] [soft piano states F-A-B over a quiet D bass] [pure sustained harmony opens around D-A-F] [soft rounded low pulse establishes an even gentle periodicity] [leave wide space after the phrase] [Instrumental] [piano answers F-A-B with A-F] [B natural remains a brief gentle Dorian color] [use smooth voice leading between D-A-F and D-A-B] [keep D clearly stable beneath the phrase] [Interlude] [piano rests] [sustain D-A-F with very small inner-voice movement] [rounded pulse continues without accent] [let the long clean decay carry the section] [Instrumental] [piano returns with F-A, followed later by a separate B] [let B settle gently toward A over D] [phrase spacing increases] [avoid introducing a new melodic theme] [Instrumental] [piano reduces to isolated F and A] [sustained voicings simplify toward D-A-F] [pulse onset becomes softer while tempo remains steady] [let each piano note decay fully] [Interlude] [piano leaves a long silence] [sustain open D-A with F appearing only as a quiet inner tone] [harmonic changes become rare] [pulse remains rounded and low] [Instrumental] [piano plays F-A once, then one separated B] [resolve B softly toward A] [keep D in the bass throughout] [leave a long gap after the resolution] [Interlude] [piano rests] [open D-A carries the harmony] [use only slight inner-voice motion] [pulse softens further] [Instrumental] [piano plays isolated A, then F, with long decays] [sustain D-A underneath] [no repeating melodic phrase forms] [space dominates the musical surface] [Interlude] [piano rests] [sustained D-A remains nearly static] [pulse continues as a soft low periodic presence] [do not add new harmonic color] [Instrumental] [piano plays one isolated A] [let it decay completely into D-A] [leave a long open space] [keep dynamics restrained and stable] [Outro] [piano plays one soft D] [sustained D-A remains underneath] [pulse softens into the final decay] [clean natural ending] [End]

