Rdio’s cheaper music plan combines ad-free radio with a handful of on-demand songs

If you can’t decide between Internet radio and on-demand streaming, Rdio’s $4 per month plan will give you a bit of both. The new “Rdio Select” plan is like a cross between the premium plans offered by Pandora and Spotify, combining ad-free Internet radio with a handful of on-demand tracks for offline listening. Similar to Pandora, users can