Many thanks for the help above; I should have found the web advice via search !
Hopefully mp3 will be a smaller file and thus quicker to transfer via iTunes. Or have I misunderstood the iTunes music format; transferring a wma file via iTunes works OK, but it is still a large file. Is the iTunes a more compact format or is the file still the same wma size on the iPad; could the file size be reduced with conversion on the iPad? (searched Apps, nothing suitable / worked)
Private mode was off, recycled, and Pprune is now stable, at least so far, ...