Classic Blues

Why it sounds this way

Classic Blues is a lo-fi chord progression that moves I7 – IV7 – I7 – V7 (C7 F7 C7 G7 in C). The feeling walks home · poised → open · poised → home · poised → tension · poised. The extra quality words (poised) are why the colors soften or spark: sevenths and sus chords never quite say the feeling in a straight line. That matches a small tip for this mood: 7th chords blur the edges. That is why it fits a scene like “old radio blues.” Play it on piano or guitar above, and switch keys if you want it higher or lower.