Martin, I certainly share your enthusiasm for Koussevitsky's Sibelius 7 recorded with the BBC S.O. when this was new music. I can also understand your luke warm response to No's 2 and 5. Fashions change of course and as you rightly point out, the sound quality could be better. Certainly Koussevitsky's 'Tapiola' [1939] is on a par with the seventh Symphony, chilling in intensity.--kp