If you are musically inclined, then you have the necessary knowledge to do nearly anything: that unpracticed fundamentals ruin the day, that patience pays off faster than going for immediate gain, that timing, cooperation, and relaxation allows people to do wonderful things, and that if you really like to do something, it will cost you all of your time and money to just get started, while some other sap who knows nothing will have the latest and greatest equipment but not know how to use it.
There are numerous types of throws. A few I know about (names vary among styles and practitioners):
Overhand - the classic throw. You throw the weapon from high to low, and it spin into the target.
Underhand - you swing your arm from low to high, more forefully than a lob, and drill the knife into the target. This is best done with a "zero spin" throw, where the knife doesn't rotate. It's very easy to do, and sticks deeply from 15 feet (5 meters) away.
Sidearm - you whip the knife around you, keeping your arm horizontal. I never quite got the hang of this throw. Will P., who posts here on rare occasions, has an amazing sidearm throw that's wickedly fast, with zero spin.
Opposite Hand Throw - an overhand with your weaker hand, but your footwork is the same as your regular throw. Takes a bit of getting used to, but is quite easy once you figure out how to distribute your weight.
Overhand Zero Spin - This is an amazing throw, with a weighted blade, best demonstrated by Ralph Thorn. Ralph used to post here, but apparently had issues with toning down his salesmanship. You can see video of his throwing at
this website. I have yet to even experiment with this throw, but seems easy once you modify the blade.
Side Snapping - basically a frisbee-like throw, used for saw blades or stars or circular blades... a very well balanced knife can be made to stick accordingly.
Shoulder Holster Throw - I gave up on this one because it didn't ever seem to have much value.* Basically, if you're right handed, you reach to your left shoulder (assuming your knife is sheathed there), and then throw overhand in a long arc and stick the knife into the target. It's quite doable--but again, I'm not sure.
Hope this intrigues you--the websites I list probably have photos of these throws, as well as many, many more.
* Knife throwing seems to have little tactical value for most people. Everyone's mileage may vary.