IT is relevant to ask!

I agree that you don't need that many video production tools in a daw, as it is for working with audio....and programs like Final Cut Pro do video so much better! When scoring, the aim is to produce the music for the film, and probably these days with small outfits (not Hollywood productions) produce sound design aspects to as well as some sound effects.

You need to be able to scroll by frames so that you can locate a certain frame in a film, in/decrementing one frame at a time...say a door slam and then place a marker there for adding a sound effect. This location will not change if you speed up the music in anyway, but as you current can't lock a clip in Sonar, if you decided to speed up the tempo of the music...all of your clips move.

Also locating frame is crucial as you may have 00:00:03:24 of film which you need to score to, thus you need to be able to find a suitable tempo and time signature to allow your music to fit. Admittedly you could write a piece of a rough length and then time compress it to fit, but most composers (Writing in pencil or Sibelius) would set a tempo of say 123.45 and know that in that time frame you would end up with 9 bars and 1 beat ...so you could have 8 bars of 4/4 and then one of 5/4 (this is only a made up example!).

If you set two markers relating to key frames in DP, it will perform these calculations for you....which is really nice as you don't have to do the maths!

Don't be scared of my Mac experiences....they are just mine....just like some people have PC nightmares....at the end of the day it is a tool....it is the output than matters....and well for me Apple isn't helping with my output....hence decision made.

Btw...no one mentions Samplitude....I have tried the demo and it seems pretty good....something to bear in mind.

All the best

Neil