Selecting, copying, and undo

Once notes are on the page you’ll want to move them around, copy a riff, or back out of a change. Tabula uses the conventions you already know.

Selecting

Extend a selection from the cursor with Shift+← / Shift+→. The selection grows beat by beat and can cross bar lines.
Extend it by whole bars with Shift+Ctrl+→ / Shift+Ctrl+←. Whichever beats the cursor started and ended on, the whole of every bar it touches is selected.
Shift-click a beat on the score to extend the selection to it — the same thing Shift+→ does, in one gesture. Shift-clicking one of a bar’s own marks — its chord lane, its section label, its time signature or its tempo — extends by whole bars instead, the way Shift+Ctrl+→ does. (A dynamic is the exception: it names one beat, so shift-clicking it extends by beats.)
The location strip tells you which you have: Selected: bars 3–4 when whole bars are selected, Selected: beats 3.1–4.1 when the range stops part-way through one. Every action that applies to a selection applies to exactly what the strip names.
On a touchscreen, tap two bars, then choose Select to Here — it selects between the bar you tapped before and the one you’re on now, no Shift needed. It lives in the Bar ▾ menu, which on a phone-sized screen is folded — with the other menus — into the ⋯ button in the row above the score. Both bars have to be on the same track and staff: a selection lives in one of them.
Select everything in the current track and voice with Ctrl+A.
Clear the selection with Esc, which leaves the cursor where it is. Any plain cursor move clears it too.

While a range is selected, the location strip above the score names it — Selected: bars 3–4, or Selected: beats 3.2–4.3 when the range doesn’t cover whole bars.

What a selection applies to

A selection is the target of the next edit, not just of copy and paste:

Cut, copy, delete, and tuplets.
Techniques, articulations, and dynamics — palm mute, let ring, dead note, harmonics, staccato, accent, and the dynamic cycle apply to every beat in the range.
Bar attributes — time signature, key signature, tempo, and gradual tempo apply to every bar the selection touches, and the repeat brackets go on its two ends.

Two rules make that predictable over a range that isn’t uniform:

A toggle fills before it clears. If any beat in the range lacks the mark, the whole range gets it; only once every beat has it does the same key take it off. (Beats with nothing for that mark to land on sit it out: a rest, a beat whose notes are all dead notes — a dead × has no ring to stop — and, for the string techniques, a beat with no strung note at all, such as a piano or drum beat.) A note-level mark lands on every note of each beat in the range, whichever string it is on: a selection names beats, not strings.
A cycle steps once. Dynamics and accent read the first beat in the range, move one step, and write that to all of them, so the range stays uniform instead of scattering.

Either way the whole range is a single undo step.

Sections are the exception: a section is a mark on one bar, not a range, so it always applies to the bar the cursor is in.

Cut, copy, and paste

Action	Keys
Copy	`Ctrl`+`C`
Cut	`Ctrl`+`X`
Paste	`Ctrl`+`V`
Copy across all tracks (whole bars)	`Ctrl`+`Shift`+`C`

Copy and cut act on the current beat or the active selection. Copy all tracks grabs the whole bars across every track at once — useful for duplicating a section of the arrangement. Paste replaces the selection, or drops into an empty measure. A drum track takes only drum hits: pasting guitar or other pitched notes onto one is refused, and nothing changes.

Deleting

Deleting is context-aware so the same key does the obvious thing:

If you’re part-way through typing a multi-digit fret, Delete/Backspace clears just that pending digit.
With a selection active, it removes the range.
On a populated beat, it removes the note on the active string (or the drum piece on the active line).
Hold Shift (Shift+Delete), or use it on an empty beat, to remove the whole beat.

Undo and redo

Undo — Ctrl+Z
Redo — Ctrl+Shift+Z

Every edit you make is a single undo step. View-only preferences — hiding a track, zoom, theme — aren’t part of the undo history, so undoing never quietly changes how the score is displayed.