The back of this album uses a more classical style of crediting music writers than the albums we usually catalog here do, mixing composition and arrangement/transcription, so we'd normally credit some of the "composers" as arrangers, and some of the people we'd credit as composers are left out entirely:
01: Originally composed & arranged by Go Shiina.
Later rearranged into the M@STER VERSION by Toshiya Shioiri; this is the version that Pianeet transcribed here.
02: Originally composed by Chopin and Takeo Watanabe. The Y. Kondo here is the person who arranged this medley, Yuji Kondo (近藤 祐嗣):
[1] [2].
03/06: The NND hourly jingle "Jihou" (時報) is originally by
Dwango producer Foo-san. It's not particularly clear to me from other sources if he actually wrote it or just performed the flute, but JASRAC has him credited as a composer so that's good enough for me.