What is best "free recorder app" to use on my tablet

I want to record mp3 music and some CD cuts to my Acer Iconia A500 tablet to play along with my dulcimer. I tried the recorder app that came with the tablet, but it does not work too well. Anybody using a good one please let me know. Looking for a free app if possible. Please respond to my email address: joebesse@aol.com

Thanks for any help given on this topic.