I use a "Super Scope" with RW Cds that record at normal speed. At my own studio I can plug my digital piano in one input and my microphone into another to get the mix I want.
Another student with lots of memory on her phone prefers to record her lessons that way.
Thanks for your input, Laura. I haven't heard of the SuperScope, but I am so NON-technical that there is no surprise there! Your student's idea makes perfect sense -- if audio quality isn't an issue, then that is the perfect way to do it, because the kids always have their phones with them.
Since there are so many devices & software programs, I don't know where to begin. So recently I went on Amazon and looked at what was recommended by others. I ended up buying a Zoom H2 Handy Portable Stereo RecorderDigital Voice Recorders) which is highly recommended for ease of use and terrific sound quality.
Just got it today, for the purpose of making an end-of-the-year CD for my students, and am having to learn in a hurry! So far, I can tell you that it kind of makes me long for the days of a cassette tape player (anything with a "MENU" function makes me sweat), but I think it is going to be a great asset once I get over my fear.