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MEIKO is a Vocaloid DTM software created by Crypton Future Media.She is the first Japanese vocaloid and first Japanese female Vocaloid, she utilizes the Vocaloid engine developed by YAMAHA .Her voice is noted to be steady, straightforward, and suitable for any musical genre.She is fit to sing anything from pop, rock, jazz, R&B to children's songs. Vocaloid digital sound is still heard in her voicebank and editing may be needed.

Source from Wikipeida