Why Can’t a Slur Decide the Phrase for You?

A curved line is visually prominent, so an adult learner may read it as a complete sentence: the phrase begins where the line begins, and wherever it ends must be a place to ‘breathe’. Yet a slur is first an articulation and connection mark, and it may also indicate a larger grouping. Its precise treatment varies between instruments, so it is not a self-sufficient answer to musical syntax.

At the piano, a short slur often asks for notes to be connected and for the final note to be released appropriately. A long line across several bars is more likely to suggest an overall span. The actual phrase is also shaped by metrical weight, the melodic high point, harmonic tension and the cadence. If a slur crosses a point of harmonic repose, mechanically flattening everything into one continuous line can hide an audible comma behind a visual connection.

Try singing the melody before playing, allowing a slight pause where the harmony settles. Then play the printed score and compare the ends of the slurs with the structure you hear. The point is not that slurs may be ignored. They are important evidence, but they cannot decide the phrase alone. Reading requires the symbol, the style and the ear to work together.

https://www.steinberg.help/r/dorico-elements/6.1/en/dorico/topics/notation_reference/notation_reference_slurs/notation_reference_slurs_c.html
https://handbook.musescore.org/notation/expressive-markings/slurs-and-ties
https://pianoinspires.com/article/to-slur-or-not-to-slur-that-is-the-question/

When reading and practising a score in <a href="https://apps.apple.com/us/app/scoreflow/id6796205656">ScoreFlow</a&gt;, you can compare the printed slurs, harmonic arrival points and what you actually hear in the same passage, keeping attention on where the phrase is going rather than only on the symbol's boundaries.