This thread is following a theme I've used for other forms of works. This one covers concertos or any work for solo instrument and ensemble, which would be larger than 15 instruments. These kinds of works are usually referred to as "concertante" works.
Double and triple concertos are also acceptable, but no concertos for orchestra.
This thread is for posting YouTube clips of the works. You can offer your commentary, or not, but you must provide text showing composer, title, date of composition, and performers when available.