Include this script into your page along with the iframe for a responsive media embed
Tannhäuser (full title Tannhäuser und der Sängerkrieg auf Wartburg / Tannhäuser and the Singers' Contest at Wartburg Castle) is an opera in three acts, music and text by Richard Wagner, based on the two German legends of Tannhäuser and the song contest at Wartburg en.wikipedia.org/wiki/Tannhäuser_(opera)