Third-stream is a term used to describe a fusion of jazz and classical music. However, there are several other similar terms that can be used interchangeably, including jazz-classical fusion, fusion jazz, or simply classical jazz. Some musicians may also refer to this genre as crossover or experimental music, highlighting the unique nature of the genre that blurs the boundaries between different styles and forms of music. Regardless of the specific terminology used, Third-stream and its synonyms represent an exciting and innovative approach to music that continues to inspire musicians and audiences alike.