OK, but start saving your pennies and get a better mic. The PCM-M10 will sound pretty much as good as the mic.
While that Sony mic is...ok, I guess...and good for loud music because it is low sensitivity...it doesn't have a lot of highs or lows. Its frequency response is 100-15,000 and your ears' frequency response is 20-20,000 Hz. Up there at the top, between 15K and 20K, is not that much unless you're a dog. But every doubling of Hz is another octave of music. The lowest note on the piano is 27.5 Hz, next octave up is 55 Hz, next is 110. So you are missing almost two whole octaves of bass with the cutoff at 100. And at shows, when your ribcage is vibrating in that fun way, they are probably using subwoofers to go even lower.
If you listen carefully to the bass lines in the bands you record, you may hear that they jump around a lot--that's because the mic is recording the overtone of the lowest notes, an octave higher than what the bassist is playing--not the more coherent bass line actually being played. And you know how the drummer is kicking that big round thing? You might want to hear that too.
Get a better mic and a battery box and go into Line-in on the lovely PCM-M10. Church Audio CA-11 or CA-14 and CA-Ugly Battery box, or if you want it sooner and cheaper (though not quite as wonderful sounding), Sound Professionals BMC-2 (smaller than Church Audio) and one of their battery boxes. Forget bass rolloff or fancy stuff--the PCM-M10 can handle bass through Line-in. Mic-Battery Box-Line-in.
Upgrade-itis is a chronic and incurable disease, but just a little mic upgrade will bring you a lot of joy.