Concept:
In the classical Hindustani Solo Tabla concert format, performance compositions are broadly divided into two major functional conceptual archetypes:
• Vistarshil Compositions (Expandable Improvised): These are theme-and-variation based structures. The player starts with a foundational core theme and systematically elaborates it on-stage using logical rules of permutation (Paltas) ending with a Tihai. Examples include Kayda and Peshkar.
• An-Vistarshil Bandhi-Hui Compositions (Preconceived Fixed): These are rigid, structured compositions composed beforehand. They have fixed phrases that cannot be expanded, altered, or improvised on stage; they must be performed exactly as originally set by the composer. Examples include Tukda, Chakradar, Paran, and Gat.
Step 1: Evaluate each item based on fixed vs expandable taxonomy.
Let us analyze the nature of each option choice:
• A. Kayda: A completely expandable, systematic structural format relying purely on dynamic real-time theme development via customized expansion lines (Paltas). Hence, it is not fixed or preconceived.
• B. Chakradaar: A fixed, preconceived structure where a standard compositional block or Tukda is repeated exactly three times to complete a mathematical loop landing precisely back on the first beat (Sam). It is fixed.
• C. Tukda: Literally meaning "a piece." It represents a short, tightly-knit, fixed mathematical phrase block packed with a built-in *Tihai* conclusion that must be played exactly as written. It is fixed.
• D. Peshkaar: Played as the grand presentation opener in a solo, introducing the character of the rhythm. It is fully expandable and heavily open to creative variation layouts. Hence, it is not fixed.
• E. Peshkaar Kayda: Formulated as a compound variant line or generic expression matching open improvisational patterns. Hence, it is not fixed.
Concluding the analysis, only Chakradaar (B) and Tukda (C) constitute non-expandable, completely fixed, preconceived structures. This points directly to choice option (C).