When we use the term orchestration it refers to a musical arrangement that is intended for performance by an orchestra.  Many years ago this was done with the use of only a pencil, manuscript paper and perhaps a piano.  And only those who could afford to pay thousands of dollars to hire a studio orchestra, would get to hear their orchestrations recorded.  Today we can produce orchestrations for a fraction of the cost by using computer software and high-end sound libraries.  

     I've invested thousands of dollars into sound libraries so that I can offer high quality original orchestrations as well as mock-ups from existing scores.  When an original orchestration has been completed it can then be engraved using notation software for use in live performance by an orchestra.