The maternal grandparents came from Bessarabia and Russia to Brazil. He star- ted his musical career as part of the group A Barca do Sol, and participated in the Nova Banda that performed live with Antonio Carlos Jobim and in recordings that led to a Grammy win for the CD Antonio Brasileiro. As a cellist, he studied music in Brazil and later attended the New England Conservatory of Music. In 1995, with Paula Morelenbaum, Paulo Jobim and Daniel Jobim he created the Quarteto Jobim Morelenbaum. The group has toured Europe several times, including an appearance at the Expo'98 held in Lisbon. They have also toured the United States and Brazil, and have recorded a CD (Quarteto Jobim Morelenbaum). Morelenbaum has provi- ded musical arrangements for works by international artists such as Portuguese band Madredeus, Portuguese singer Dulce Pontes, Japanese group Gontiti, Angolan com- poser Paulo Flores, Scottish/American musician David Byrne, Cape Verdean singer Cesária Évora and pianist and composer Ryuichi Sakamoto, among others. One of his best known worksis Transparente, in partnership with Mariza. In 2001, he participa- ted as cellist on the recording of the DVD Al this time, by Sting. In 2008, he produced and arranged for Mexican singer Julieta Venegas in MTV Unplugged. In 2010, he was the arranger for Omar Sosa's Ceremony album with the NDR Bigband and in 2016, he took part in Suite Três Rios, released by Dan Costa.