Ruth Golding, who recorded a (free!) audio version of The Westminster Alice for the excellent website librivox.org, also recorded some accompanying explanatory notes for the general reader. They’re available in both audio and text form on her website and also on archive.org. You can also listen to them below.
[archiveorg westminsteralice_notes width=640 height=140 frameborder=0 webkitallowfullscreen=true mozallowfullscreen=true]