If you are looking to "put together" the piece—likely meaning extracting or playing the music—you would typically need:
: Once extracted, the files (usually in .flac , .wav , or .mp3 format) can be played in any standard media player. Comiket 93 | Doujin Music | ВКонтакте - VK 21531 rar
: Software like 7-Zip or WinRAR to open the .rar file. If you are looking to "put together" the
Based on the information provided, likely refers to a compressed archive associated with the track "Star Piece!" by the artist you (also known as YUDUKI). the files (usually in .flac