Same name, different taal?
Why a familiar taal name in an old text is not proof that today's cycle is the same.
A name is not a structure
Medieval sources contain names corresponding to today's Jhoomra, Jhaptaal and Ektaal, but the surviving evidence does not establish that their medieval and modern structures were the same. A familiar name is not proof of direct continuity.
C1
1.Prem Lata Sharma, Indian Aesthetics and Musicology, Vol. 1, ed. Urmila Sharma. Varanasi: Āmnāya-Prakāśana, 2000.
What a historical claim needs
Similar matra counts are not sufficient; similar gesture names are not sufficient. A historical claim requires textual structure, chronology and demonstrated North Indian transmission — and a work's title is not its genre: the Tāladaśaprāṇadīpikā, for instance, is a Telugu song-poem illustrating taals, not a treatise on the ten prāṇa.
C1, 2
1.Prem Lata Sharma, Indian Aesthetics and Musicology, Vol. 1, ed. Urmila Sharma. Varanasi: Āmnāya-Prakāśana, 2000.
2.V. Raghavan, Sangita Literature (on the Tāladaśaprāṇadīpikā as a Telugu song-poem, not a theoretical treatise).
Notes & sources
1.Prem Lata Sharma, Indian Aesthetics and Musicology, Vol. 1, ed. Urmila Sharma. Varanasi: Āmnāya-Prakāśana, 2000.
2.V. Raghavan, Sangita Literature (on the Tāladaśaprāṇadīpikā as a Telugu song-poem, not a theoretical treatise).