Practice

Your First Grooves: I–IV–V

Step 8 of 10 · Beginner Bass Path

Put roots, fifths, and timing to work — one steady figure per chord across the changes.

What you'll learn

  • What the I, IV, and V numbers mean in a key
  • Build one repeating figure per chord and keep it identical
  • Land the new root on beat one of every change
  • Explore the same progression from any root

Songs rarely sit on one chord, and musicians count the moves with Roman numerals: I is the key's home chord, IV is built four scale steps up, V five. In E, that is E, A, and B7 — the engine of thousands of rock, blues, folk, and country songs. The I–IV–V guide tells the full story, and the bass progressions library shows the common progressions voiced on your four strings from any root.

Your job on bass is not to decorate the changes — it is to make them undeniable. Pick one simple figure — root only, root–fifth, or root–octave from the movable shape — and repeat it identically on every chord, landing the new root square on beat one of each change. One figure, repeated, root on the downbeat: that discipline is what makes a band sound tight, and it is harder — and more valuable — than it sounds.

The routine below cycles E → A → B7 → E, with the timer flipping the chord for you. Keep your figure steady across all four bars and let the changes tell the story. When any I–IV–V feels automatic, you already own a huge share of the songbook.

Practice this