Ask a musician where they hold tension and most will point at the obvious place — the hands. But watch a few players closely and the hands are usually the last link in a longer chain. Tension collects upstream, in a handful of spots that are remarkably consistent across instruments, and it tends to settle there long before anyone notices.
The neck and shoulders
This is the quiet one. The shoulders ride up by a centimetre or two — a pianist reaching into a loud chord, a violinist holding the instrument up, a wind player drawing a long phrase, a drummer bracing for a fill. They rarely come back down on their own between phrases, so over a session the baseline creeps upward. The player feels "a bit tired by the end" without connecting it to a shoulder line that has been slowly climbing for twenty minutes.
The jaw and face
Concentration leaks into the face. The jaw sets, the brow draws in, the blink rate drops as attention narrows on a hard passage. For a singer or a wind player the jaw is in the signal path, so it matters directly; for everyone else it's a pure tell — a clenched jaw is a reliable sign that the rest of the body is working harder than the music needs.
The hands — but as a symptom
The grip does tighten, but usually as the end of the chain, not the start. A pianist's forearm hardens; a guitarist's fretting hand clamps; a drummer's sticks get the death grip. By the time the hands are tight, the shoulders and jaw have often been tense for a while. Treating the hands as the source misses where it actually began.
Tension is a chain, not a point. By the time you feel it in the hands, it has usually been sitting in the shoulders and jaw for a while.
Why these spots, and why you miss them
They're all places that quietly help you "try harder" — bracing, gripping, holding still — and all places far enough from the music itself that your attention never lands on them while you play. You're listening, reading, counting. The shoulder creeping up doesn't make a sound, so it goes unobserved.
This isn't a checklist to fix. It's just where to look. The same few places, across nearly every instrument — visible from the outside, almost invisible from the inside.