Everyone is getting hot under the collar this week because Apple seems to be progressing its Apple Music by around 2 million paying subscribers a month – that has been extrapolated from a preview of a Bloomberg TV interview on the David Rubenstein Show, with Apple CEO Tim Cook, which will go out in June. Cook revealed that Apple Music’s streaming service now has more than 50 million users – either paid or on free trials and admitted previously that Apple has 8 million trials at any point. That puts the paying number on 42 million just one month after Apple said it had 40 million – hence the extrapolated run rate. Apple Insider felt this was closer to 4…