I have found most tracks satisfactory where real instruments are used, there can be a loss of clarity in some due to the downloading in mpg files. Where synthesizers are used for brass reproduction this leaves a lot to be desired. Overall the tracks are not too bad some just need the muddy flat sound cleaned up so we get a little more clarity. The objective when using these tracks is to get the sound as close to the original as possible and as you can see I must be reasonably happy with the tracks as I keep coming back for more. Hope this helps and is not to unkind. Regards Bill.