由于要配合作品的主题，配乐大多偏向爵士乐风格。为了和相关的故事与场景合拍，菅野远赴美国录音，除了和当地的爵士乐队合作之外，所使用的新曲数量是一般TV动画的3倍。（监制渡边先生也将之充分活用散见于片中各处。事实再次证明：菅野洋子小小赋予动画作品独特的个性和魅力）
动画的主要音乐包括：
主基调为Jazz、Blues，再加入大量欧美音乐元素，包括民谣、民歌(Ballad)、古典乐、歌剧(Opera)、摇滚乐、重金属音乐(HeavyMetal)、桑巴(Samba)、Rap、Hiphop、BossaNova、Techo甚至是欧美流行曲。
相信很多人都有了更深的认识，许多不理解COWBOY BEBOP音乐的人也解开了一些疑惑。从大量的COWBOY BEBOP原声音乐中，我们发现许多歌曲有诸如上述所说的特征。有些歌曲热烈、奔放；有些歌曲互相答问的方式进行；有些歌曲使用短小反复的乐段；有些歌曲缺乏层次起伏感，相对不频繁的音量大”浠欢依侄拥睦制魇褂孟喽晕榷...... 
专集详细列表(按出版时间顺序)：
COWBOY BEBOP O.S.T 1 [VICL-60201][21/05/98]
01.Tank!
02.RUSH
03.SPOKEY DOKEY
04.BAD DOG NO BISCUITS
05.CAT BLUES
06.COSMOS
07.SPACE LION
08.WALTZ BLACK
09.PIANO BLACK
10.POT CITY
11.TOO GOOD TOO BAD
12.CAR24
13.The EGG and I
14.FELT TIP PEN
15.RAIN (Steve Conte)
16.DIGGING MY POTATO
17.MEMORY
COWBOY BEBOP Vitaminless [VICL-60248][03/06/98]
1.THE REAL FOLK BLUES (山根麻衣)
2.Odd Ones
3.Doggy Dog
4.Cats on Mars (Gabriela Robin)
5.SPY
6.Fantaisie Sign (Carla Vallet)
7.Piano Bar
8.Black Coffee (Hidden Track)
COWBOY BEBOP No Disc O.S.T 2 [VICL-60202][21/10/98]
01.American Money
02.Fantaisie Sign (Carla Vallet)
03.Don't bother none (山根麻衣)
04.Vitamin A
05.LIVE in Baghdad (遠藤正明)
06.Cats on Mars (Gabriela Robin)
07.Want it all back (山根麻衣)
08.Bindy
09.You make me cool (古川昌義)
10.Vitamin B
11.Green Bird (Gabriela Robin)
12.ELM
13.Vitamin C
14.Gateway
15.The Singing Sea (Tulivu-Donna Cumberbatch)
16.The EGG and You
17.Forever Broke
18.POWER OF KUNG FOOD REMIX
COWBOY BEBOP BLUE O.S.T 3 [VICL-60203][01/05/99]
1.BLUE (山根麻衣)
2.WORDS THAT WE COULDN'T SAY.(Steve Conte)
3.AUTUMN IN GANYMEDE
4.MUSHROOM HUNTING
5.GO GO CACTUS MAN
6.CHICKEN BONE (SYDNEY with Sister R)
7.THE REAL MAN
8.N.Y. RUSH
9.ADIEU (EMILY BINDIGER)
10.CALL ME CALL ME (Steve Conte)
11.AVE MARIA (JERZY KNETIG)
12.STELLA BY MOOR
13.FLYING TEAPOT (EMILY BINGER)
14.WO QUI NON COIN (多田葵)
15.ROAD TO THE WEST
16.FAREWELL BLUES
17.(Secret track)SEE YOU SPACE COWBOYS NOT FINAL (山根麻衣)
COWBOY BEBOP Music for Freelance [remix album][VICL-60371][02/06/99]
01.radio free mars talk 1
COWBOY BEBOP Knockin' on heaven's door ASK DNA [VICL-35297][25/07/01]
01. WHAT PLANET IS THIS.
02. Ask DNA
03. COSMIC DARE (PRETTY WITH A PISTOL)
04. Hamduche
05. Is it real?
COWBOY BEBOP Knockin' on heaven's door Future Blues [VICL-60756][29/08/01][Cowboy Bebop - Future Blues OST + Cowgirl ED single ]
02.Tank! - Luke Vibert Remix
03.radio free mars talk 2
04.Forever Broke - Fila Brazillia Remixfrom silence
05.radio free mars talk 3
06.Cats on Mars - DMX Krew Remix
07.radio free mars talk 4
08.Piano Black - Ian O'Brien Remix
09.Cat Blues - Mr.Scruff Remix
10.radio free mars talk 5
11.Fe - DJ Vadim Remix
12.Fantaisie Sign - Ian Pooley Remix
13.radio free mars talk 6
14.Space Lion - 4 Hero Remix
15.radio free mars talk 7
disk1
01. 24hours OPEN
02. Pushing the sky
03. Time to know~Be waltz
04. Clutch
05. MUSAWE
06. Yo pumpkin head
07. Diggin'
08. 3.14
09. What planet is this?!
10. 7minutes
11. Fingers
12. Powder
13. Butterfly
14. No reply
15. Dijurido
16. Gotta Knock a little harder
17. No money
18. gift from Y.K. / Rain (demo)(Hidden Track)
disk2
ask DNA
01. WHAT PLANET IS THIS.
02. Ask DNA
03. COSMIC DARE (PRETTY WITH A PISTOL)
04. Hamduche
05. Is it real?
cowgirl ED
06. Goodnight Julia
07. PAPA Plastic
08. Telephone Shopping
09. かぶとがにこだいの魚
10. Slipper Sleaze
11. 23話
COWBOY BEBOP Future Blues DVD [VIBL-38][11/10/01][5 live tracks at Shibuya Ax, Tokyo 08/08/01]
01. Tank!
02. Rush
03. What planet is this
04. TOO GOOD TOO BAD
05. BAD DOG NO BISCUIT
06. CAT BLUES
07. SPOKEY DOKEY
08. The EGG and I
09. COSMOS
10. Don't bother none
11. Rain
12. CALL ME CALL ME
13. Cats on Mars ～ WO QUI NON COIN ～ FLYING TEA POT
14. Ask DNA
15. Diggin'
16. MUSHROOM HUNTING
17. Want it all back
18. Gotta knock a little harder
＜アンコール＞
19. SPACE LION
20. THE REAL FOLK BLUES
21. Blue
22. Is it real?
23. (Piano Solo)※Y.Kの演奏による
COWBOY BEBOP CD-BOX O.S.T Limited Edition [VIZL-64 - (out of print)][21/06/02]