Her most noted songs are "Trader Chumki Jole Akashe" "Hatti Matim Tim", "Mon Bolchhe Aaj Sandhyay", "Chotto Pakhi Chandana" and "Ami Alpana Enke Jai Aloy Chhayay" " Akash Ar Eai Mati Oi Dure" " Jodi Oli Na chahe".

Alpana Banerjee's major popularity derived from singing children's songs, which she transformed from simple rhymes to immortal classics.

One of the earliest and notable Bengali non-film songs sung by Alpana was "Samiran Phire Chao" under Robin Chattopadhyay's baton.

Soon after, in 1951, she recorded the song "Matir Ghare Aaj Nemechhe Chand Re" for the Bengali film 'Vidyasagar' with music once again by Robin Chattopadhay.

Her voice was eloquent in capturing a variety of moods ranging from the romantic "Mon Bolchhe Aaj Sandhyay", to the frivolous 'Bakul Gandhe Jodi', 'Ami Alpana Enke Jai' and sombre 'Jetha Achhe Ogo Shudhu Nirabata'.

Alpana recorded a cover version of the Hindi film song 'Albela main ek dilwala' under Sachin Dev Burman's music direction.

On All India Radio'-Calcutta's 'Ramyageeti' program, she sang songs tuned by internationally renowned Sarod player Ali Akbar Khan.