Apps and Music gone - how to recover?
I was advised by an Apple Support person today that I needed to erase my hard disk and reinstall OS X.
I was told to back up all files and I did that and that everything else would be in in iCloud so it was an easy task. It was easy but now I have a MacBook and all the paid and free Apps I had are gone. I can find and download Apple's own Apps (Keynote, Pages, Numbers and GarageBand) but not the others. In particular I am concerned with my Microsoft Apps (PowerPoint, Excel and Word) which I use daily and I can't find them in either iTune or the AppStore under 'My Apps' or 'Purchased Apps'.
I have also discovered that all my music, decades of it, except for five albums I bought from Apple last year are gone. I had my music all matched with iTunes.
Have I lost my paid apps and music? Can anyone suggest how I might get them back?
Thanks in advance.
Patricia
MacBook Pro (Retina, 13-inch, Late 2012), OS X Yosemite (10.10.2)