Jazz Photo Archives | The Jazz Library on Instagram: "🎥 Cosmos was a Japanese jazz‑pop trio formed by Keiko Doi (later known internationally as Keiko Matsui), Roman Kaieda, and Yumiko Tanaka. Active between 1981 and 1984, they fused 1980s synth‑pop with traditional Japanese sounds and jazz riffs. • Keiko Doi (Keiko Matsui): Pianist and keyboardist, she later built a successful solo career in smooth jazz and world music, becoming one of Japan’s most recognized jazz artists worldwide. • Roman Kai