Why Shouldn’t 6/8 Be Counted as Six Equally Weighted Beats?

The ‘6’ in 6/8 tells us that a bar contains six eighth-note divisions, but it does not usually mean six equally important beats. In compound duple metre, the bar contains two broad beats. Each beat is a dotted crotchet and divides into three quavers. If all six notes receive equal weight, the durations may be correct while the metrical hierarchy disappears, leaving the phrase to march in six small steps.

Adult learners often meet this problem at a slow tempo. Counting all six quavers can be useful while making sure none is missing. As the tempo rises, however, allowing every number to direct a separate hand movement preserves six small pulses and makes forward motion difficult. A more reliable transition is to feel ‘one–two’ as the broad pulse, while hearing three divisions inside each beat. In a left-hand pattern of six broken-chord notes, the aim is not to force accents onto notes one and four. It is to let the first three travel towards the second broad beat, and the next three towards the following bar.

Music-theory sources classify 6/8 as a common compound-duple metre, but a particular piece may acquire a six-beat feel through an extremely slow tempo, its accents or the composer's notation. The time signature provides a default organisation; it does not replace listening. The point of practice is not merely to exchange one counting formula for another, but to hear two larger directions within six accurate divisions.

https://viva.pressbooks.pub/openmusictheory/chapter/compound-meters-and-time-signatures/

When practising from a digital score, <a href="https://apps.apple.com/us/app/scoreflow/id6796205656">ScoreFlow</a&gt; can serve as a score-following tool: take a short passage in 6/8, play it first in two broad beats, then return to the full notation and check that each three-part subdivision remains even.