Marvin Renslow, first officer Rebecca Shaw and flight attendants Matilda Quintero and Donna Prisco.

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Ms. Quintero described the woman as 25 years old and from the Colombian island of San Andres.

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Record producer Carlos Quintero, director of Orixe and Jamm Records in Spain, believes that the software has a high accuracy rate.

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Quintero has since become a member of Music Intelligence Solutions' advisory board, so he is bound to have a positive take on the service.

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But Quintero claims the program in no way writes a song, it simply tells you whether it has the potential to be a hit.

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"I haven't heard from her since, " said Maria Quintero, 31, the woman's downstairs neighbor in the community of Cielo Mar, a 10-minute drive from Cartagena's city center.

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She took over the running of some of Ivan's businesses until she was arrested in Panama in 2004, together with the man who died with her on Thursday, Lucio Quintero.

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Mostly, however, these are new compositions played by a group of innovative musicians who are decades Mr. DeJohnette's junior bassist and singer Esperanza Spalding, trumpeter Ambrose Akinmusire, saxophonist Tim Ries, guitarist Lionel Loueke and percussionist Luisito Quintero.

WSJ: Jack DeJohnette | Playing Musical Chairs | Cultural Conversation by Larry Blumenfeld