To add a video for Philipp Maintz / Bruckner Window, chorale prelude for solo organ, No. 46 (Morgenglanz der Ewigkeit), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Philipp Maintz / Bruckner Window, chorale prelude for solo organ, No. 46 (Morgenglanz der Ewigkeit)