Goal: Use slides, hammer-ons and pull-offs inside a groove so the bass line sings without losing the beat.
Time: 20 min

You'll

Learn the slide, the hammer-on and the pull-off one at a time
Put all three into a two-bar groove in A minor
Loop it with a metronome and keep the time steady

A guitarist’s left hand on bass

The three moves

Slide: pluck once, glide to the new fret with full pressure. Arrive on the beat; leave a little early.
Hammer-on: pluck, then bring a fingertip down hard just behind a higher fret. Two notes, one pluck.
Pull-off: fret the higher note with the lower one already held, pluck, then flick the top finger off sideways so it plucks the lower note.

Bass strings are heavy: hammer from the knuckle, not the fingertip alone, and keep the thumb behind the neck.
tetsuya’s long slides ring up and down the neck from a single pluck. That takes steady pressure all the way and a bass with good sustain.
He mostly plays with a pick, crossing strings fast. Pick or fingers both work here; the left hand is the lesson.

You know these moves already. The point here is using them on the low strings for melody, not for solo flash.
The tabs redraw on your four lowest strings: same frets, an octave above the bass.

The shamisen family: suri (slide the finger along the string), uchi (strike a finger onto the string, the hammer-on), hajiki (pluck with the left hand, the pull-off).
Sukui is the bachi’s part of the family: scoop the string upward on the way back, a second note without a new downstroke.
On a fretless neck, suri passes through every pitch: aim at the target tsubo and stop dead on it.

The groove

Two bars, Am then G, straight eighths.

Rest your thumb on the low B string while you play: slides and hammer-ons shake the neck and set an open B ringing.

Add a high answer on the C string: slide fret 2 to 4 (D to E) at the end of bar 2, the guitarist’s move in the bass’s top octave.

Hear it

Do this

Each move alone, ten times, slowly. The second note must be as loud as the first.
The groove at 70 bpm. Count “1 & 2 & 3 & 4 &” out loud.
Slides arrive on the beat. Hammer-ons don’t rush.
Four clean loops, then 90 bpm.
Tell your tutor which move dropped volume or time, and how you fixed it.

Watch out

Fading notes: pressure dropped mid-slide or the hammer landed too far from the fret.
Rushing: legato notes feel easy, so they creep early. The metronome decides.