I — Stable

ii — Opening up

iii — Softly stable

IV — Opening up

V — Restless

vi — Softly stable

vii° — Softly restless

IIadd9/Ⅴ. Ⅱadd9 floating over Ⅴ in the bass. A J-Pop intro and verse staple.

IIadd9/Ⅶ. A beauty where the leading tone in the bass lets tension and clarity coexist.

Ⅰadd9/Ⅲ. Maximum clarity from the 9th and slash bass. The staple city pop intro.

Ⅰadd9/Ⅳ. Tonic add9 floating over Ⅳ in the bass. A melting, dreamlike opening.

Ⅰadd9/Ⅵ. Tonic add9 with Ⅵ in the bass. A rich, dreamy start.

Ⅳ/Ⅰ. A subdominant over the tonic in the bass — a soft, dreamlike opening.

ⅣM7/Ⅰ. An M7 subdominant over Ⅰ in the bass — a jazzy, refined opening.

Ⅰ/Ⅲ. A gentle start in first inversion. Leads naturally to Ⅳ or Ⅱm.

Ⅰ/Ⅴ. Second inversion. A stable yet floating tonic.

Ⅴ/Ⅶ. A dominant over the leading tone in the bass, starting with a strong pull toward the tonic.