iPodに入ってる曲のタグがグチャグチャなやつってなんなの？なんで同じ歌手が5人もいるの？

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TGAGTAGCGT ACCGCATGTG GGCGCACATT AAGCCATTAA GTTGAGCTCA CCTATGGAAA AGCTTTGGCG
GGCTCCGCAT GAGTTGTTCT AGGTGACAAT AAGGTACTAC CACCGCTTGA CTCTGCCGTC GTAAGATTTA
GCGCTTGATA GGCACTACCA TAGGTATGTT ACAAATGTGC CAAGGGCAGA TATAACTGAC ATCACTAGTC
AATGCCATTT CCGTATACAT ACCATTATCC ATGAACGGGG GAGACGAAAA AGATACCTTT CGCTCGTCAG
CGTAAGAACA CTTTACTCAA TAGGCTATGC CTCGCTGCTC AGACATGGTC CACGAAGGCT ATACTACTCG
TGGCGTCCTG CCTGACGTCG CGATGAATGT GATGGCTACG ACAGGGCTCC TTCGAAACCC ATGCCGCCTC
AAAGTAGTGG TCTCACTTTT GAAGGGGTAG GACACGGACT AATATATTCT CTCGCTGGAC TGAATAGAGA
CGTAAGTGCG GTATACTAAG GTTGTTGATG CGTGGGACTC GGCCGCCTGA ATCCATGTCT TCTATCTCCG
ACAGGGTGAG ATTTCATTCA CCGCCTAAAC GCTTAGCCCC CGACTACTAT CGGGAGGCGC AGAGAGCCGA
CACTAAACCC CTACTAGACT ATTGTTAAAA GAAACAAATC ACCACTCATT ATGTGCAGCA GACGGGATTT
TAAAGTTACC CCCAGGGTGT GCCTTCCACA AGAGCACCCG CACAAGGAAG GCAACATCAA AGCTCCTTTC
CTACTTATAG TATCCGGTTA TTTCGTAGGA TCATACATCT ACTTTCCGCC AGCTTCACTG CCATGCGAAA
GTAATCCCCC CTAGTCTTTC TCCCTCAATC GAGGATAAGG TGCATGAACT TCAGTATCTA TTGGGGACAG
ATTTCACCAG TGACGTATTC TCCATCATAA CAATGCCTCG CAAATACGAT ATTGCCAGAC CCCAGGTCCC
GTGGGAACCT GAGTTCAATG TTATCGCCCG GGATGGGTAG TTCTTACGCG AATTTGAGAT CTATTTGTAC
TGTCCACGGA TTGGCGGTTG GCTACAGGGC ACAACGACTA ACACGCAGCG CCCCGAAACG CTATTTGGGG
CAAATCTCCC TTGTTCAGCC AACTGGGGCA GCTGCGAAGT CTCCACTCGA AAGGCTACCG CTCGGACCTG
CAATTTCTCC GGAATGGTTC TGTAGGCGAA CAGCTACGCT TCCCTAAATC AGACTGCTAC CGCCCATCTC
TTTGGAGGTA AACGTGTCGT ATTACTCCTG GCAGTTAGAT GCTATCTGCG TCGCATTCGT GTGTGCGAGC
GTAAGATATC GGAGTGAGAA CCAGATGGAG TTACATGTAA TGCTATAGTG