Slow Blues in A: Soloing Over the Jazzy Changes
A twelve-bar blues lets you park on one scale and coast. This one doesn't. Sixteen bars, a slow tempo, and a handful of chords that don't belong in a plain blues — which is exactly why it makes you a better soloist. Here is the track, the chart, and what to play over every chord. Saturday at noon we do it live, start to finish.
Most blues jam tracks are a twelve-bar loop with three chords. Great for learning the pentatonic boxes, terrible for learning to hear changes, because nothing ever changes enough to punish you. So I built one that does. It's a slow blues in A — around sixty beats a minute, four beats to the bar, with a one-beat pickup — stretched to sixteen bars and seasoned with chords you'd expect in a jazz tune: a D minor where a D major should be, an F sharp minor, a B minor. The chart and the scale shapes are on screen in the video, and the current bar lights up as it plays, so you always know where you are.
The changes
Four lines of four bars. The first two lines are the "head" — home, the dominant seventh that pulls you toward D, then D major sliding into D minor. The second line walks down through F sharp minor and B minor to the E that sets up the next pass. The third line repeats the opening move. The last line doubles up: two chords per bar, which is where the slow tempo stops feeling slow.
One scale that covers most of it
If you want to get through the form today, play A major pentatonic. It fits the A chords, it fits the D, and it is note-for-note the same scale as F sharp minor pentatonic, so the F sharp minor bar takes care of itself. Play it from the second position and the whole sixteen bars sits under one hand shape. That's the lazy, correct answer, and it's the one to start with.
Then go after the two chords it doesn't cover.
The chord that makes it jazzy: Dm
Every time the D major turns into D minor, one note changes: F sharp becomes F natural. That one note is the entire flavor of this track. Over the Dm bar, reach for D minor pentatonic or D Dorian and lean on the F natural — hold it, bend into it, let it rub. Then, as the bar ends and the A comes back, walk it home: F → E → C sharp. The F resolves down to E, the E resolves down to C sharp, and C sharp is the major third of A. Three notes and you sound like you planned it.
The A7 and the E
Over the A7 in bar two, A Mixolydian is the clean choice (that's A major with a G natural instead of G sharp), and A minor pentatonic or A blues works too — this is the one bar where the gritty minor-over-major sound is fully at home. Over the E chords, E major pentatonic or E Mixolydian keeps it bright; A harmonic minor gives you the darker, more vocal pull back to A. Over Bm, B minor pentatonic or B Dorian. Over the plain D, D major pentatonic, or just stay in A major pentatonic and let it ring.
You don't have to switch scales on every bar. Switch on the ones that would otherwise clash — Dm and A7 — and let the one-scale answer carry the rest. That's how real players do it: a home scale, plus two or three "fixes" where the harmony demands them.
Do this today
- Put the track on and play A major pentatonic through all sixteen bars. Don't solo yet — just land on a chord tone at the start of every bar.
- Second pass: sit out everything except the Dm bars. On those, find the F natural, hold it, then play F → E → C sharp into the A.
- Third pass: add the A7 bar. Put the G natural in, hear the Mixolydian sound, then drop back to major pentatonic on the next bar.
- Now loop it and solo. The track is built to repeat clean, so leave it running until the changes stop surprising you.
The full jam track with the chart and scale shapes on screen. More tracks, any key, any tempo, on the Jam Track Station.