This is a tough question to answer. Soundtracks and BGMs have always been a strong feature in anime with a wide range of styles. Some of my favourites are the eerie and haunting soundtrack that Kenji Kawai produced for the Vampire Princess Miyu OAVs, the Bubblegum Crisis soundtracks, almost anything by Yoko Kanno, and the classically themed soundtrack to Record of Lodoss Wars.
But in the end I’m going to go with the Silent Moebius 2 soundtrack. The music for both the Silent Moebius films is just fabulous but what tips the second over the line is the beautiful duet between the two lead actresses. It is just so pretty to listen to, and sums up the key theme of the movie perfectly.
Day 1 - Very first anime: Robotech, Gall Force, Vampire Princess Miyu
Day 2 - Favourite TV series: Card Captor Sakura
Day 3 - Your anime crush: Oh grow UP already.
Day 4 - Favourite Film: My Neighbour Totoro
Day 5 - Anime character you feel you are most like (or wish you were): Kinoshita (Rocket Girls)
Day 6 - Most annoying anime character: Lynn Minmei
Day 7 - Character you’d most like to slap: Hiyama Hikaru
Day 8 - Most epic scene ever: Launch day - Wings of Honneamise
Day 9 - Saddest anime scene: The passing of the Fortune Twins - Nariya and Eriya
Day 10 - Favourite slice of life anime: ARIA
Day 11 - Favourite mecha series: Patlabor: The Mobile Police
Day 12 - Best instalment of a franchise you don’t like: Mobile Suit Gundam 0080: The War In The Pocket
Day 13 - Worst instalment of a franchise you do like: WXIII: Patlabor the Movie 3
Day 14 - Current (or most recent) anime wallpaper: I think I had a Silent Mobius wallpaper once.
Day 15 - A reality check for a genre you like: Romantic/Heroic Space Pirates
Day 16 - An anime classic that simply doesn’t work for you: Ghost in the Shell (film)
Day 17 - Best Background Music: Silent Moebius 2: The Motion Picture
Day 18 - Best Five-team (?)
Day 19 - Change you’d like to make to any one anime
Day 20 - Most ambiguous anime character
Day 21 – Favourite OAV Series
Day 22 - Animation studio you'd most like to slap.
Day 23 - Anime you think had the best, or most intriguing art
Day 24 - Favorite anime hero or heroine
Day 25 - Best anime villain
Day 26 - Your favorite harem anime
Day 27 - Favorite anime opening theme song
Day 28 - Favorite anime companion/summoned creature
Day 29 - Best Anime Music Video
Day 30 - Favorite anime ending theme