If there's some unspoken rule about radio hosts playing their own music, local composer and singer Amanda Martinez should feel free to break it. The popular voice of JAZZ.FM91's Café Latino can proudly drop the needle on her own sultry record, Sola, which scorches with hot Cuban rhythms and bossa-tinged jazzy numbers like Guajira Sola and Diciembre. Kevin Laliberte does some nice flamenco guitar work on the traditional composition La Llorona, where Martinez's voice writhes with the affecting pain of a mourning mother. Even anglo unilinguals will dig the sensual words mostly sung in Spanish (and Portuguese), because anything this soulfully delivered supersedes language barriers. Martinez launches Sola at the Drake Hotel tonight (Thursday, June 22).