Jhaptaal Khali, Dugun and aad: When the Count Itself Is Wrong
An inter-school competition requires every team to present one nirgun bhajan in Jhaptaal and one khayal composition in Ektaal. The tabla player sets Jhaptaal at 120 matras per minute, so one matra lasts half a second. The candidate sings the Jhaptaal bandish first at barabar laya, then at dugun, then at aad laya. In rehearsal she claps on matras 1, 3, 6 and 8; the tabla player stops and says the khali has been treated as a tali, and the theka now sounds like a different cycle. Later, moving from the 12-matra Ektaal to the 10-matra Jhaptaal bandish, she counts twelve matras again and enters two matras late, so the sam of the new composition falls on matra 3. The team has ten days and one tabla player who cannot slow down below 100 matras per minute.
1. Correct the tali–khali scheme for Jhaptaal, write the theka with its vibhag, and explain why clapping on matra 6 breaks the cycle.
Read the worked answer
Correct scheme. Jhaptaal has 10 matras divided 2 + 3 + 2 + 3. Tali falls on 1, 3 and 8; khali falls on 6. Only three claps are sounded, plus one wave on 6.
Theka:
| Vibhag | Matras | Bol | Hand |
|---|---|---|---|
| 1 | 1–2 | dhi na | tali (1) |
| 2 | 3–5 | dhi dhi na | tali (3) |
| 3 | 6–7 | ti na | khali (6) |
| 4 | 8–10 | dhi dhi na | tali (8) |
Why clapping on 6 breaks it. The candidate is marking four equal claps, which converts the cycle into a symmetrical 4-mark pattern and destroys the asymmetry 2+3+2+3. Because the khali is the unmarked division, clapping there tells the tabla player that the third vibhag is a tali; he then phrases the theka as a different taal and the sam she imagines no longer matches his. The khali is not a weaker tali - it is a silent marker of division, and the wave must be felt, not clapped.
2. At 120 matras per minute, calculate the duration of one avartan at barabar, dugun and aad, and state where the bandish's sam falls in each case over the first three cycles.
Read the worked answer
Base tempo. One matra = 60 ÷ 120 = 0.5 s. One Jhaptaal avartan at barabar = 10 × 0.5 = 5.0 s.
- Barabar (1×): 10 bandish matras in 5.0 s. Sams at 0 s, 5 s, 10 s - always on taal matra 1.
- Dugun (2×): two bandish matras per taal matra, so 10 bandish matras take 5.0 ÷ 2 = 2.5 s. Sams at 0 s, 2.5 s, 5.0 s. The 2.5 s sam falls exactly on taal matra 6 (5 matras elapsed), so dugun sams alternate between matra 1 and matra 6.
- Aad (3/2): three bandish matras in the space of two taal matras, so the bandish runs at 1.5× and 10 matras take 5.0 ÷ 1.5 ≈ 3.33 s. Sams at 0 s, 3.33 s, 6.67 s, 10 s. Alignment with taal sam returns only after three aad cycles = 10 s = two taal avartans.
The practical consequence: dugun can be entered and left at almost any sam, but aad must be planned in blocks of three avartans or it will not return to sam where the singer expects.
3. Explain how to move cleanly from the 12-matra Ektaal item into the 10-matra Jhaptaal bandish without the two-matra overrun.
Read the worked answer
The error is arithmetic, not memory: she is carrying the 12-matra cycle into a 10-matra composition. Since lcm(10, 12) = 60, Jhaptaal and Ektaal realign only after five Ektaal avartans = six Jhaptaal avartans, so the two cycles will drift if she simply starts anywhere.
Clean solutions:
- Treat the extra two matras as a bridge. After the final Ektaal sam, count matras 1–10 for Jhaptaal and use matras 11–12 of Ektaal for a short tihai or a deliberate rest, then begin Jhaptaal afresh on a chosen matra.
- Start Jhaptaal on an agreed matra of Ektaal and mark it physically - for example, begin on Ektaal matra 11 so the Jhaptaal sam coincides with the next Ektaal sam - and rehearse only that junction.
- At 120 matras per minute, two matras are exactly one second; she should practise the junction with a metronome and a spoken count (dha dhin dhin dha / dha tin tin ta) rather than relying on the tabla.
Given ten days, solution 1 is the safest: it turns the mismatch into a planned musical event instead of an accident.