Fantasia on a Theme by Thomas Tallis

On Iceberg Radio, I just heard Ralph Vaughan Williams' majestic "Fantasia on a Theme by Thomas Tallis", also referred to as the "Tallis Fantasia". It made me feel the way I felt listening to the "Ben Hur" music of Miklós Rózsa, or Holst's "Jupiter". The entire piece is about 18 minutes long; this clip is just the first part of it.