Books like Ganamrutha Varna Malika
A. S. Panchapakesa Iyer
Ganamrutha Varna Malika is 122 pages, about 2 hours 14 minutes at 250 words a minute.
10 books to read next
How long each takes
Suryakanthi 5.4 h 
Carnatic Music 2.4 h Sangeeta Sudha 3.3 h 
The Diagnosis & Correction of Vocal Faults 3.9 h The Voice of the Mind 6.7 h 
Training Tenor Voices 3.2 h 
Singing for Dummies 6.8 h 
Basics of Vocal Pedagogy 5.7 h 
Complete Handbook of Voice Training 4.7 h The Foundations of Singing 2.2 h
Carnatic Music 2.4 h Sangeeta Sudha 3.3 h The Diagnosis & Correction of Vocal Faults 3.9 h The Voice of the Mind 6.7 h Training Tenor Voices 3.2 h Singing for Dummies 6.8 h Basics of Vocal Pedagogy 5.7 h Complete Handbook of Voice Training 4.7 h The Foundations of Singing 2.2 h Bar height shows length. Estimated at 250 words a minute.