Three songs that Hakhverdyan himself says have influenced him most and have been his all-time favorites are Eleanor Rigby by The Beatles, Amsterdam by Jacques Brel and It's a Man's World by James Brown.

[2] Hakhverdyan staged plays at Yerevan Sundukyan State Academic and at Hrachya Ghaplanyan Drama theaters.

[5] Ruben Hakhverdyan is an author of a number of CDs, the first one being "Songs of Love and Hope" issued in Paris in 1985.

[6] The best known songs are "Snow" ("Ձյունը"),[7] "The Dogs" ("Շները"), "In the Nights of Yerevan" ("Երևանի գիշերներում") and many others.

Hakhverdian's songs are used in the "Found Dream" (1976) animated cartoon which is very popular in Armenia.