Those of you who read this blog on a regular basis know that I'm hopelessly addicted to my IPod, using the little silver guy (current model, a 160-gig Classic, cute little David Horvath sticker on the back) to manage and play music. I know it's not the same sound quality as LPs or CDs, but for my purposes, I often settle for running my Pod off a dock attached to the stereo.
So my laptop has an awful lot of music in its hard drive--six months' worth if you count all the genres packed in and sorted into various and sundry libraries.
Most of the time, I peruse this vast library with the help of my trusty stereo, or my headphones for most listening when the significant other is about. But for writing about piano music, I take a special pleasure in the two, humble speakers built into the work-surface of my MacBookPro.