Umineko no Naku Koro Ni musicbox Blue (うみねこのなく頃に musicbox Blue) is the first comprehensive collection of original soundtrack music for Umineko no Naku Koro Ni. It is predominantly composed by dai, except for TSUBASA composed by Luck Ganriki and Discode Version IV by CAP and xaki. It comprises of a portion of the soundtrack for the first four games, and comes first in a series of albums—followed by Umineko no Naku Koro Ni musicbox Red and later—Umineko no Naku Koro Ni Chiru musicbox -Kiri no Pithos- and Umineko no Naku Koro Ni Chiru musicbox Red.
Tracklisting
Disc1
| 01 | Ride on | 3:10 |
| 02 | Summer's Door | 1:57 |
| 03 | HANE | 1:40 |
| 04 | Sea | 0:48 |
| 05 | Towering Cloud in Summer | 1:52 |
| 06 | White Shadow | 1:29 |
| 07 | hope | 3:04 |
| 08 | mind | 1:02 |
| 09 | Core | 1:55 |
| 10 | Requiem | 2:52 |
| 11 | Oku | 1:53 |
| 12 | Untitled | 0:11 |
| 13 | Answer | 2:35 |
| 14 | moon | 2:58 |
| 15 | absolution | 2:06 |
| 16 | Stairway to Heaven | 3:04 |
| 17 | Untitled | 0:11 |
| 18 | happiness of marionette (omake) | 2:02 |
| 19 | Sunny Spot | 3:17 |
| 20 | Dancing Pipe | 4:07 |
| 21 | Dance of the Moon Rabbits | 2:37 |
| 22 | prison | 3:00 |
| 23 | mother | 2:23 |
| 24 | Melting Away | 3:03 |
| 25 | soul of soul | 2:18 |
| 26 | Thank You for Being Born | 3:13 |
| 27 | Paradise Lost | 4:01 |
| 28 | Wings | 2:50 |
| 29 | happiness of marionette | 2:21 |
| Total Duration | 67:59 |
Disc2
| 01 | TSUBASA (PinoMix) | 3:04 |
| 02 | Eternity | 2:28 |
| 03 | Over | 2:26 |
| 04 | The Tale of Sakutaro's Tenacity | 2:00 |
| 05 | Wind | 2:40 |
| 06 | Aura | 2:21 |
| 07 | Revolt | 3:11 |
| 08 | mortal stampede | 4:02 |
| 09 | Sun | 2:31 |
| 10 | Hopeless | 2:20 |
| 11 | Dir | 1:57 |
| 12 | Endless Nine | 5:41 |
| 13 | Future | 3:12 |
| 14 | Kururi | 1:48 |
| 15 | TSUBASA | 3:04 |
| 16 | I Want to Touch That Day short version | 3:16 |
| Total Duration | 46:01 |
Disc3
| 01 | Don't Cry | 2:34 |
| 02 | believe | 2:46 |
| 03 | Antique Clock | 2:01 |
| 04 | The Door to the 6th | 3:04 |
| 05 | The Bread of Life | 2:25 |
| 06 | Black knight | 4:29 |
| 07 | human's room | 2:37 |
| 08 | A Present from a Bright Red Santa | 1:47 |
| 09 | roomless | 2:02 |
| 10 | Toybox | 2:12 |
| 11 | Witch's room | 1:23 |
| 12 | A World without Witches | 1:27 |
| 13 | Run | 1:54 |
| 14 | Checkmate | 6:07 |
| 15 | Hello your dream | 3:37 |
| 16 | Final answer (short) | 1:50 |
| 17 | Tomorrow | 3:13 |
| 18 | Dreams of Tomorrow | 3:14 |
| 19 | Don't Cry | 2:33 |
| 20 | Discode VersionIV | 2:37 |
| 21 | Untitled | 1:42 |
| 22 | Untitled | 2:23 |
| Total Duration | 57:57 |
Disc1
| 01 | Ride on | 3:10 |
| 02 | Natsu no Tobira | 1:57 |
| 03 | HANE | 1:40 |
| 04 | Sea | 0:48 |
| 05 | Towering Cloud in Summer | 1:52 |
| 06 | Shiroi Kage | 1:29 |
| 07 | hope | 3:04 |
| 08 | mind | 1:02 |
| 09 | Core | 1:55 |
| 10 | Requiem | 2:52 |
| 11 | Oku | 1:53 |
| 12 | Mudai | 0:11 |
| 13 | Answer | 2:35 |
| 14 | moon | 2:58 |
| 15 | absolution | 2:06 |
| 16 | Tengoku no Kizahashi | 3:04 |
| 17 | Mudai | 0:11 |
| 18 | happiness of marionette (omake) | 2:02 |
| 19 | Hidamari | 3:17 |
| 20 | Odoru Kiseru | 4:07 |
| 21 | Tsuki Usagi no Butō | 2:37 |
| 22 | prison | 3:00 |
| 23 | mother | 2:23 |
| 24 | Melting Away | 3:03 |
| 25 | soul of soul | 2:18 |
| 26 | Umarete kite kurete arigatō | 3:13 |
| 27 | Shitsurakuen | 4:01 |
| 28 | Tsubasa | 2:50 |
| 29 | happiness of marionette | 2:21 |
| Total Duration | 67:59 |
Disc2
| 01 | TSUBASA (PinoMix) | 3:04 |
| 02 | Kuon | 2:28 |
| 03 | Over | 2:26 |
| 04 | Sakutarou no ganbari monogatari | 2:00 |
| 05 | Kaze | 2:40 |
| 06 | Orā | 2:21 |
| 07 | Revolt | 3:11 |
| 08 | mortal stampede | 4:02 |
| 09 | Sun | 2:31 |
| 10 | Hopeless | 2:20 |
| 11 | Dir | 1:57 |
| 12 | Endoresunain | 5:41 |
| 13 | Future | 3:12 |
| 14 | Kururi | 1:48 |
| 15 | TSUBASA | 3:04 |
| 16 | Ano hi ni Furetakute short version | 3:16 |
| Total Duration | 46:01 |
Disc3
| 01 | Nakanaide | 2:34 |
| 02 | believe | 2:46 |
| 03 | Furudokei | 2:01 |
| 04 | Muika he no Tobira | 3:04 |
| 05 | Inochi no Pan | 2:25 |
| 06 | Black knight | 4:29 |
| 07 | human's room | 2:37 |
| 08 | Makkana Santa no Okurimono | 1:47 |
| 09 | roomless | 2:02 |
| 10 | Omochabako | 2:12 |
| 11 | Witch's room | 1:23 |
| 12 | Majo no inai sekai | 1:27 |
| 13 | Run | 1:54 |
| 14 | Checkmate | 6:07 |
| 15 | Hello your dream | 3:37 |
| 16 | Final answer (short) | 1:50 |
| 17 | Tomorrow | 3:13 |
| 18 | Ashita no Yume | 3:14 |
| 19 | Nakanaide | 2:33 |
| 20 | Discode VersionIV | 2:37 |
| 21 | Mudai | 1:42 |
| 22 | Mudai | 2:23 |
| Total Duration | 57:57 |
Disc1
| 01 | Ride on | 3:10 |
| 02 | 夏の扉 | 1:57 |
| 03 | HANE | 1:40 |
| 04 | Sea | 0:48 |
| 05 | Towering Cloud in Summer | 1:52 |
| 06 | 白い影 | 1:29 |
| 07 | hope | 3:04 |
| 08 | mind | 1:02 |
| 09 | Core | 1:55 |
| 10 | Requiem | 2:52 |
| 11 | Oku | 1:53 |
| 12 | 無題 | 0:11 |
| 13 | Answer | 2:35 |
| 14 | moon | 2:58 |
| 15 | absolution | 2:06 |
| 16 | 天国の階 | 3:04 |
| 17 | 無題 | 0:11 |
| 18 | happiness of marionette (omake) | 2:02 |
| 19 | ひだまり | 3:17 |
| 20 | 踊る煙管 | 4:07 |
| 21 | 月うさぎの舞踏 | 2:37 |
| 22 | prison | 3:00 |
| 23 | mother | 2:23 |
| 24 | Melting Away | 3:03 |
| 25 | soul of soul | 2:18 |
| 26 | 生まれてきてくれてありがとう | 3:13 |
| 27 | 失楽園 | 4:01 |
| 28 | 翼 | 2:50 |
| 29 | happiness of marionette | 2:21 |
| Total Duration | 67:59 |
Disc2
| 01 | TSUBASA (PinoMix) | 3:04 |
| 02 | 久遠 | 2:28 |
| 03 | Over | 2:26 |
| 04 | さくたろうの頑張り物語 | 2:00 |
| 05 | 風 | 2:40 |
| 06 | オラー | 2:21 |
| 07 | Revolt | 3:11 |
| 08 | mortal stampede | 4:02 |
| 09 | Sun | 2:31 |
| 10 | Hopeless | 2:20 |
| 11 | Dir | 1:57 |
| 12 | エンドレスナイン | 5:41 |
| 13 | Future | 3:12 |
| 14 | くるり | 1:48 |
| 15 | TSUBASA | 3:04 |
| 16 | あの日に触れたくて short version | 3:16 |
| Total Duration | 46:01 |
Disc3
| 01 | 泣かないで | 2:34 |
| 02 | believe | 2:46 |
| 03 | 古時計 | 2:01 |
| 04 | 6日への扉 | 3:04 |
| 05 | 命のパン | 2:25 |
| 06 | Black knight | 4:29 |
| 07 | human's room | 2:37 |
| 08 | 真っ赤なサンタのオクリモノ | 1:47 |
| 09 | roomless | 2:02 |
| 10 | おもちゃ箱 | 2:12 |
| 11 | Witch's room | 1:23 |
| 12 | 魔女の居ない世界 | 1:27 |
| 13 | Run | 1:54 |
| 14 | Checkmate | 6:07 |
| 15 | Hello your dream | 3:37 |
| 16 | Final answer (short) | 1:50 |
| 17 | Tomorrow | 3:13 |
| 18 | 明日の夢 | 3:14 |
| 19 | 泣かないで | 2:33 |
| 20 | Discode VersionIV | 2:37 |
| 21 | 無題 | 1:42 |
| 22 | 無題 | 2:23 |
| Total Duration | 57:57 |
Covers
Front
Booklet Front & Back
Disc 1
Disc 2
Disc 3
Jacket Front & Back