9/8 metronome
Keys: Space start/stop · T tap · ↑↓ tempo ±1, Shift ±5 · ←→ between beats, Enter to cycle
Nine eighth notes per bar, with Tempo measured in eighth notes per minute. For three equal dotted-quarter beats, choose 3+3+3 from Grouping. At ♪ = 240, those larger beats pass at 80 per minute. This is the grouping you will encounter in slip jigs.
The menu also offers 2+2+2+3 and 2+2+3+2. Each has four groups: three short ones and one long one. Try both at the same tempo and listen for the long group moving to a different place in the bar.
Use the grouping your music calls for, then count along with its accents. To practise hearing only the group starts, keep Clicks per beat at 1 and silence the intervening beats. The bar still lasts exactly as long, so keep counting the eighths through the gaps.