Corporation) is a Japanese company that produces musical instruments, audio equipment, and sound products, and is now the world's largest manufacturer of musical instruments. Headquartered in Japan, the company's subsidiaries also operate home equipment and motorcycle-based businesses. In 2004, Yamaha developed VOCALOID, a core engine for voice synthesis software for electronic music production, and its product line includes a full range of musical instruments, including pianos, electronic pianos, digital pianos, portable electronic pianos, wind instruments, stringed instruments, percussive instruments, acoustic instruments, and electronic instruments. In addition, sound chips, XG sound cards, audio-visual processing equipment, system processing equipment, professional audio equipment, semiconductors and electronic products, soundproofing engineering and golf equipment are also included in the business. The brand "Yamaha" musical instruments and audio equipment in Hong Kong by Tom Lee Music Co.