Kalani is an outstanding violin player in Sri Lanka today, well versed in both eastern and western music. Few recordings or concerts are held there without his able participation. He is a fine composer, and the popular song Kerakena Rode, performed by Edward Jayakodi, is one of his creations. Singers Neela Wickramasinghe and Amarasiri Peiris have benefited from his melodies.

Kalani is also known for his music direction of tele-dramas including Piyambana Aswaya, Kumarayaneni, Adbhuta Lampuwa and Samudra Chaya.

Sanda Tharu Nihandai, sung by Amaradewa, Wasantaye Aga, sung by Edward Jayakodi, Kwiya Oba, sung by Deepika Priyadarshni and Suwanda Deni, sung by Rukanta Gunatilake, have something in common: they were performed with an orchestra of one – Kalani Perera.