All of my albums are available to listen to online, absolutely free of charge. The early albums are quite simplistic; I'd recommend starting with The Unravelling of Travelling or any album after that.
Running times are not exactly X minutes and zero seconds - that's due to what iTunes says. In most cases, you'll have an unexpected bonus of anything up to 59 seconds of audio. Enjoy it!
All tracks are free to use for non-commercial purposes. Attribution required.