[Machine Translation] Since its publication in 2015, "Japanese-Mono A to Z Japanese Groove Disc Guide" (Litto Music) has recorded unprecedented sales for a disc guide. Following the December release of the 2-CD compilation "Japanese Groove A to Z presents GROOVY Japanese Groove SUMMIT Columbia Edition" in conjunction with the disc guide, this CD set is edited with the keyword "Rare Groove" focusing on works and songs that could not be included in the previous disc guide. A jet-black Rare Groove selection of songs, Jazz, OST, special effects, etc., collected under the name of "Japanese Mono".