£300million invested at old 1% rates is £3 million a year ! They would always get much more than that.
Of course, what they each do with their share of £300m is up to them - save it, spend it, invest it, give it to charity....
My point was that the capital values of all these music catalogues, when they are sold, are dictated by the level of interest rates and the anticipated future cashflows coming from the songs included.
If Genesis had sold a year ago, they would have got more than they are getting now.