But it's just a human feeling. This song is not specifically about vampires, but church religious music written by Bach.

The following is an introduction:

Tokata and fugue in D minor, originally organ music, are one of Bach's masterpieces in his youth. Later, it was adapted for orchestra by Polish composer stokowski and for piano by Polish pianist and composer taussig. The music is in d minor, in 4/4 time. The introduction of adagio composed of descending melody is full and powerful, which renders and paves the way for the grand momentum of the whole song (fragment 1); Then, the music plays big chords, and then presents the theme of Tokata, with dramatic elements; After the Tokata theme, the fugue theme (the second paragraph) appears in the upper part of the music, using the same music material as the introduction part; Subsequently, the fugue theme moved to the bass, appearing eight times before and after, and the musical mood gradually rose; Finally, the music reproduces the part of Tokata and ends with a gorgeous ending. The following is the organ version of the work. This work has been quoted by Richard Clayderman, the modern "Prince of Emotional Piano", and has been widely circulated.

Organ playing video:

/watch? v=_FXoyr_FyFw