Existence

Existence 「存在, Sonzai」 — вісімнадцятий трек першого диска Clannad Original Soundtrack. Випущений 13 серпня 2004 року. Також існує ще дві версії: Existence -e.piano- і Existence -piano-. Обидва знаходяться на третьому диску Clannad Original Soundtrack.

Clannad Original Soundtrack
Диск 1	Ushio • Fantasy • Mag Mell • Town, Flow of Time, People • Nagisa • That's Like the Wind • Étude Pour les Petites Supercordes • Hurry, Starfish • Her Determination • Tea Party in the Reference Room • Spring Breeze • Country Lane • Meaningful Ways to Pass the Time • The Days Leisure • Dumb • A Pair of Idiots • Reduce to Ashes • Existence • Phase of the Moon • Incessant
Диск 2	Snowfield • Roaring Tide • Roaring Tide II • TOE • To the Same Heights • The Place Where Wishes Come True • Shining in the Sky • -Two Shadows- • White Clovers • Distant Years -piano- • Summertime • Distant Years • Country Train • The Place Where Wishes Come True II • Ana • Nagisa: Parting at the Foot of the Hill • Chiisana Tenohira
Диск 3	Fantasy II • Spring Breeze -afternoon- • Spring Breeze -tempo up- • Spring Breeze -piano- • Meaningful Ways to Pass the Time -guitar- • Meaningful Ways to Pass the Time -sax- • Existence -e.piano- • Existence -piano- • Mag Mell -cockool mix- (full ver.) • Mag Mell (short ver.) • Mag Mell -cockool mix- (short ver.) • -Two Shadows- (short ver.) • Ana (short ver.) • Ana (full ver.) • Mag Mell (off vocal ver.) • Chiisana Tenohira (off vocal ver.) • -Two Shadows- (off vocal ver.) • Unused Track 1 • Unused Track 2