Do you need a quick way to find out how to pronounce pinyin syllables so that you can sing along to the songs?
There are now a few pinyin chart Apps that you can download, where you can click on a syllable from one neat chart and listen to how it is said in all 4 tones and neutral tone.
Here is a demo for the Allset learning one:
Allset also has a free online grammar wiki, cool for the keen student!