PSEB Matric Music Instrumental study materials
PSEB Matric Music Instrumental study resources

The 60-BPM Recording: Separating a Laya Fault from a Swara Fault in Raag Yaman

PSEB Matric Music Instrumental · Put your knowledge to work in context.

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The 60-BPM Recording: Separating a Laya Fault from a Swara Fault in Raag Yaman

Six weeks before the practical, a Matric vocal candidate submits a four-minute home recording. Part A is the Yaman alankar S R G m P D N Ṡ sung to a metronome set at 60, one click per matra in Teentaal, sixteen clicks to a cycle. Part B is a drut bandish in the same raga. The teacher's notes record three observations. (i) In Part A the candidate is steady for four matras, then bundles six or seven notes into the next four clicks and waits out the remainder of the cycle. (ii) The teevra Ma sits about 40 cents sharp against the tanpura's Sa throughout, in ascent and descent alike. (iii) The candidate argues that teevra Ma is a fixed shruti, "shruti 12", so the pitch cannot be wrong. The school owns one tanpura at C, one harmonium tuned to C sharp, and no electronic drone; the centre does not permit one. At the practical the candidate will sing a vilambit khayal with acoustic tanpura only.

1. Is the candidate's problem primarily laya or swara? Quantify what you hear in Part A and set a six-week practice plan that does not simply tell him to "practise more slowly".

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Separate the two faults before prescribing anything.

Laya: quantify it. At 60 bpm one matra lasts one second, so a Teentaal cycle is 16 seconds. In one matra he should sing one swara (alankar in barabar laya). His burst of six to seven notes in four clicks means he is singing approximately two swaras per matra, i.e. dugun, in patches, then idling. This is not a tempo problem but a subdivision-stability problem: he cannot hold barabar laya, so dugun is accidental rather than chosen.

Plan.

  • Weeks 1–2: metronome at 50, one click per matra, tanpura on; sing only Sa–Re–Ga–Ma, then the full alankar, one swara per click. Count cycles out loud at sam and khali.
  • Week 3: same alankar with the metronome clicking only sam; the candidate must still place every swara on an unmarked matra.
  • Weeks 4–5: deliberate dugun - two swaras per click, Teentaal theka on tabla if available - and only when four consecutive cycles are clean does tempo move to 60, then 70.
  • Week 6: vilambit khayal at 50–60 with tanpura, no metronome.

Rule for the candidate: tempo is earned by clean cycles, not by the calendar.

2. How should the teevra Ma be diagnosed and corrected, given the candidate's "shruti 12" defence? Give the tests you would run, in order, and what each result would tell you.

Read the worked answer

The shruti number is a theoretical label inside a 22-fold division; it is not a tuning target, and quoting it cannot make a 40-cent error disappear. Against a tanpura at C, 40 cents on Ma is clearly audible, so it is a real fault until proven otherwise.

Tests, in order.

  1. Reference test. Have him hold Sa with the tanpura alone, then Pa, then teevra Ma, recording each. If Sa itself drifts whenever he has been practising with the C sharp harmonium, the fault is a corrupted reference pitch, not the note Ma.
  2. Consistency test. Is the sharpness identical in ascent and in a slow meend? Identical error in every context points to reference/ear; error only on arrival or in descent points to production.
  3. Isolation test. Sing Ma against a sustained Pa and against Sa; a note that is correct against one and wrong against the other is a placement problem.

Correction. Stop harmonium practice at C sharp; use the tanpura as the only reference, 10–15 minutes of drone-singing daily, Ma approached from Pa and from Ga, recorded weekly. Move the harmonium to C if it can be done without destabilising the reeds.