The Call Within is described by Hamasyan as taking inspiration from numerous sources, including contemporary and historical maps, poetry, Armenian culture, cinematography, and geometry, a mixture "blurring lines between historic reality and the imaginary world."[6]
In terms of the actual musical style, The Call Within features Hamasyan's standard mixture of progressive metal, jazz fusion, and Armenian folk, but with a few new twists. On several tracks, Hamasyan makes use of electronic keyboards,[2] and the album features several guest features. Animals as Leaders guitarist Tosin Abasi is featured on the track "Vortex," providing guitar work, and vocalist Areni Agbabian and cellist Artyom Manukyan provide contributions to "Our Film".[1][7][6][8][9][10][2][5][excessive citations]
The lead single and opening track "Levitation 21," was described as "combustible," with a "high-velocity forcefulness [that] sneaks up" on the listener.[2] This style is kept throughout the tracklist, Marlbank's Daniel Stenson calling the album "a spectacular affair, darkly prog in places, feverishly intense."[7] While Jeff Tamarkin of JazzTimes noted that the more progressive tracks like "Ara Resurrected" veered towards "bombast," he conceded that the writing was "crafty enough to keep it lean and moving" throughout.[2]
However, The Call Within features several other styles. The track "Old Maps," featuring a children's choir from the Varduhi Art School, was described as "a mélange of pacifying notes and voices floating just out of reach," and "divine in nature." Critics noted that "[the album's] greatest strength is in the several divergent guises it assumes."[2]
