Copy and paste
Copy · Cut · Paste sit above the score whenever something is selected; with a hardware
keyboard, Cmd+C, Cmd+X and Cmd+V do the same.
One rule explains everything here: a copy takes whole bars. Select three notes and the copy is the bars they live in — grown, if necessary, so no tie is ever cut in half. The toast tells you exactly what was taken: Bar 3 copied, Bars 3–5 copied.

Pasting
Select the bar to paste into, tap Paste:
- Paste replaces. Four bars pasted at bar 9 overwrite bars 9–12; nothing slides along. To make room first, use Insert bars… (Bars and structure).
- Past the end, the score grows — pasting at the last bar appends what does not fit.
- The pasted bars become the selection, so paste, tap the next spot, paste flows.
Everything is checked before anything is written. If the copied music cannot land — wrong meter, not enough staves, not the same length — the app refuses in words and the score is untouched: “Bar 9 is in 3/4 and the copied music is in 4/4.”
Two limits, honestly
The clipboard lives for the session: closing the app empties it, and it cannot carry music between two scores. And a time signature never travels with a paste — a mismatch is refused rather than silently rewritten.