Mumbai, Jun 30 (IANS): Popular singer-composer Salim Merchant of the Salim-Sulaiman duo believes music is a combination of sound and silence, which a lot of music composers should understand the importance of silence.

Known for delivering background score for films like "Dhoom", "Krrish" and "Fashion", Salim told IANS: "When it comes to background music, it is important to know where not to do music and where to stop.

"Looking at the present scene in the background music of our cinema, it will start looking much better once people know the importance of silence in music. I think they should… I think that is missing these days."

Salim-Sulaiman were supposed to score the music for upcoming film "The Accidental Prime Minister". He says they are not doing it anymore.

"We are out of that. When we were busy doing 'Race 3', they (the makers) wanted us to work on 'The Accidental Prime Minister'), but we always take one project at a time. It is always about quality over quantity," he said.

They are so choosy that last year, they only did the background score of Hrithik Roshan starrer "Kaabil" and composed songs for "Poorna: Courage Has No Limit".

This year, so far they have scored for "Race 3" and composed songs for "102 Not Out".

Explaining the reason about doing less work, Salim said: "At the beginning of our career, we actually did a lot of films. Now we want to focus on good work.

"Good music needs time. One cannot just be put out something there to meet the deadline."