Liszt composed 13 symphonic poems. These poems either portray the mood of a story or actually tell a story through music. The 10th of these poems, Hamlet, performs the former of these effects. It's eery feel and relatively slow tempo throughout lend to the events in Hamlet (namely, the Ghost's appearance and the mystery concerning the death of Hamlet Sr.). I assume the faster portions (around 4:00) portray the intense mood of the conflict and climax. I'm not going to delve too deeply into this part because I haven't read Act III yet. Anyway, here's Liszt's poem; enjoy!