For 10 points, identify this opera starring the painter of the Isenheim Altarpiece, written by Paul Hindemith.
One character in this work sings of how she crosses "the embers and ice of your reason" and how "the love that strengthened me" and "the oneness in which we lived" "dies in the face of affliction" in a duet set inside a building outside of which a pile of books burns. Its first scene contains the song "Open the door! Help us!", sung by two characters who are being pursued by Sylvester, while its overture is recapitulated in the sixth scene, when the protagonist and Regina sing the folk song "Es Sungen drei (*) Engel". Wilhelm Furtwängler resigned in protest after he was banned from conducting this opera, which is set during the Peasants' War. Its composer adapted music from it into a symphony whose movements are titled "Angelic Concert", "Entombment", and "The Temptation of St. Anthony", which correspond to three views of its namesake's most famous creation. For 10 points, identify this opera starring the painter of the Isenheim Altarpiece, written by Paul Hindemith.
One character in this work sings of how she crosses "the embers and ice of your reason" and how "the love that strengthened me" and "the oneness in which we lived" "dies in the face of affliction" in a duet set inside a building outside of which a pile of books burns.
{Mathis der Maler} [or {Matthias} the Painter]