I think that everyone who really loves music has tunes that they would consider a true hidden gem. A tune that may have been stumbled upon purely by accident, usually after a long time spent crate digging(or web mining) and it connects with you in a way that most other tunes do not. Usually the tune is not very well known, it may have been released on some obscure label that disappeared after 10 releases, it may have less than 10,000 hits on youtube, it may not even be on the internet. Obviously there are great tunes that are well known,(i.e pretty much everything released by Calibre/Break/etc) but if it's a tune that hardly anyone has heard or is playing in their sets I feel it becomes that much more special and personal. As someone who loves music (Especially Drum & Bass) I would be very interested to hear some of these tunes that other people hold close and share some of mine. I am always down to hear new, subjectively amazing music For me a gem can be one of those tunes that people hear, instantly fall in love with, ask for details of and is universally well received but just very unknown. Or it can be very personal, only being able to be fully appreciated because of your unique journey through the musical universe. One of mine is a tune from the tail end of a Med School Compilation. Something that hit me hard the moment I heard it and connected with me very deeply.