I was referring to system resources needed to play music - not how many Mb you needed to download the software and associated dependencies (which will vary on many factors).
As far as program size required for the named package:
amarok is 5.3Mb amarok-libs is 2.6Mb amarok-utils is 61k
well, in any case, qmmp (which I like by the way) pulls wildmidi-libs, which pulls fluid-soundfont-lite-patches amounting to 140MB. These would have to be included in the liveimage, unless the maintainer can be persuaded to build without midi support.
As a side note, current amarok master is on Qt5. There is no release yet but people report stable behavior. How about erring on the side of bleeding edge ?