Portato and collé
Two NEXT-level strokes that sit between the ones you have. Portato is the expressive one you'll actually use soon. Collé is a training stroke that quietly makes everything else better.
Portato — pulsed notes in one bow
Portato (also called louré) is several notes under one bow, gently pulsed — each note swelled a little, with a faint separation, but the bow never stops or changes direction. It's neither fully connected (legato) nor stopped (staccato) — a soft "ta… ta… ta…" carried on one stroke. Written as tenuto dashes under a slur (sometimes dots under a slur).
How to play it
One slow down-bow, whole bow. Push the bow a touch faster for each note's middle, ease at each join — four little speed-bumps in one continuous stroke. Or use a small pulse from the index finger.
Portato is dynamics-are-a-bow-thing in miniature — you're shaping every note with the
bow, on one stroke. It's the sound of a tender phrase in a slow movement, and it connects
straight back to Stage 3, where you read the dash-under-a-slur.
Collé — "pizzicato with the bow"
Collé (French, "glued" — the name is about the release, oddly) is a tiny, pinched stroke driven by the bow-hand fingers: from the string (or a hair above it), a sharp short pinch, then an immediate stop or lift. Galamian called it "a pizzicato with the bow."
How to play it
Rest the bow on the string near the frog. Pinch the string with the bow-hand fingers — a small sharp flick — and let the bow rebound. Four of these, from the fingers, arm still.
Its real value is as a training stroke. It builds bow-hand finger flexibility and a clean, instant string "catch" — which feed détaché, martelé, and every off-string stroke later. Your tabla background helps here: the finger independence you have in the right hand transfers straight to this. Four collé notes on open D, from the fingers, is a better daily minute than "learning collé" as a piece of repertoire.
Try it
Try
Portato: play a one-octave D major scale, four notes per slur, each note gently pulsed, the bow never stopping. Then collé: on open D, twenty short finger-pinches, arm still, listening for a clean pluck-like start every time. The portato is music; the collé is gym.
The usual mistake
For portato — stopping the bow between the pulses, which turns it into slurred staccato. The bow must keep travelling; the pulse is a swell, not a halt. For collé — using the arm to make the pinch instead of the fingers, which defeats the point (it's a finger exercise).