Here is a list from my side:
Anil Biswas
Started with great music in the 1930s and continued till 1965. His movies always had great non-repetitive music, with a very good choice of lyrics.
KISMAT(1943): Almost all songs are great
ANOKHA PYAR (1948): Almost all songs are benchmarks by themselves. Compare the Lata and Meena Kapoor versions of "MERE LIYE WOH", for a class in playback singing.
Mukesh's debut song "DIL JALTA HAI" from PEHLI NAZAR 1945 set in Darbari Kanhara.
Aarzoo (1950) "Aye dil mujhe aisi jagah le chal' by Talat again an appropriate use of Darbari Kanhara
TARAANA: SEENE MEIN SULAGTE HAIN ARMAN
Chhoti Chhoti Baatein (1965): His last film. Very unconventional tunes and great lyrics once again. try "Kuchh Aur Zamaana Kahata Hai"
Listen to the series of interviews on Vividh Barthi where Tushar Bhatia (Music Director of Andaz Apna Apna) is interviewing Anil Da and his wife Meena kapoor. You cannot forget these discussions for rest of your life.
Naushad
Worked on relatively fewer films, given that his career over spanned more than 50 years, but produced more classics and all time greats than anyone else. Brought Hindustani classical music to the masses. He was the probably the only music director from the Hindi heartland, so no one could ever match his PAKAD on the North Indian folk music. There is a story on how SD Burman found out that his assistants listened to Naushad's music from RATAN, in his studio, when he was not there. SD learned a few tips on how to make involving music.
Try out the following movies to start with:
SHAHJEHAN (1946): Jab Dil Hi toot Gaya by K L Sehgal
ANMOL GHADI (1946): Each song is a hit/classic
RATTAN (1944): Each song is a hit/classic
DARD(1947)/DILLAGI(1949) : Very interesting music with unconventional singers like Uma Devi and Surriya
DULARI (1949): Suhani Raat Dhal Chuki
Mughal-e-Azam (1960): Each song is a hit/classic
Baiju Bawra (1952): Each song is a hit/classic. Great Hindustani classical compositions
Ganga Jamuna (1961): The perfect album for folk music. Once again each song is a hit/classic
SD Burman/ RD Burman
I list them together as there is no dividing line indicating where one left and where the other took over.
Enough has been said about them. They lived music, we are still trying to interpret and reinterpret their work.
Vanraj Bhatia
A Gold Medalist from the Royal Academy of Music, London followed by an association with the Paris Conservatory. Also had a good knowledge of Hindustani classical music. He is a music director with out a signature style. He was a true movie soundtrack composer. Each of movies has music it demands. Unparalleled for ever...
He was the regular composer for Shyam Benegal.
Composed for Ankur, Manthan, Bhumika, Junoon, 36 Chowringhee Lane, Mandi, Sardari Begum. Each one of them is great. His compositions for the TV serial Tamas were very powerful and moving. Check out the female version of "Purja Purja Katt Mare". His non- film albums like "The Elements - EARTH" are also unique.
Jaidev
A lot has already been said about him.
Hemant Kumar
Produced some of the best compositions for Lata; she accepts that. He used her range without making her screech.
- DHEERE DHEERE MACHAL - ANUPAMA
- KUCHH DIL NE KAHA - ANUPAMA
- HAMNE DEKHI HAI - KHAMOSHI
- SO GAYA SARA ZAMANA - MISS MARY
- VANDE MATARAM - ANAND MATH
- CHHUP GAYA KOI RE - CHAMPAKALI
- KAHIN DEEP JALE KAHIN - BEES SAAL BAAD
Some of his unique compositions for himself:
- TUM PUKAR LO TUMHARA - KHAMOSHI
- YA DIL KI SUNO DUNIYAWALO - ANUPAMA
- YEH NAIN DARE DARE - KOHRAA
- NA YEH CHAND - SHART
- BAHAYE CHAND NE AANSOO - LAGAN
- BAS EK CHUPSI LAGI - SANNATA
- BEQARAAR KARKE HAMEN - BEES SAAL BAAD
- JAI JAGDISH HARE (GEETA DUTT,HEMANT KUMAR) ANAND MATH
More to come...
Most of the above songs, except the compositions by Vanraj Bhatia, are available on HamaraCD.com