 She believes playing the piano is the key to becoming a songwriter and composer.She has collaborated with international acts including Diane Warren, Joe Pizzulo, The Cascades, Fra Lippo Lippi, Keith Martin, Kenji Williams, David Pomeranz, Lea Salonga, Billy Crawford, Charice Pempengco and Arnel Pineda of Journey.Nina is a lyric coloratura soprano, possessing approximately four-octave vocal range and the whistle register.