Ah, the wonders of technology. In the realm of music composition, more specifically film score composition, methods have rapidly changed in the last ten years. There was a time when the average composer wrote his scores (yes, wrote on paper), sitting next to a piano, “hearing” every part in his head. The only “preview” of the composition was, again, in his head. Does the string build sound right in the 16th measure? Well, try it on the piano. The piano was his every instrument. “Ok, the right hand is the violin section; left hand is the brass. No, wait, left hand is the contrabass.” Then he played it, rendering the sound of the real instruments in his mind’s ear.
Fortunately, with the wealth of sample libraries available now, we can immediately listen to what we compose, in stunning reality. A sample library is a software collection of recorded sounds, samples, of each note of an instrument. For example, most standard orchestral libraries contain a violin section. The samples will include recordings of each and every individual note on the instrument – and every one is recorded using different articulations such as legato, staccato, spiccato, portamento, etc. The library is “played” using a software program, and a digital keyboard connected a computer. An specific instrument is loaded into the program interface, and when a note is played on the piano, that note is triggered in the software program. What’s more, most of these libraries can be utilized with scoring software, such as Sibelius, to instantly play music scores that have been written on the computer.
Unfortunately, many individuals such as law students (i.e. myself), do not have the financial resources to purchase a sample library. Despite my law-student-in-debt status, what I have managed to do is to collect several “free versions” of the most popular sample libraries. Each of these limited versions contain a few instruments, and are demos that are supposed to convince you to purchase the full product. I have used several of these versions to begin orchestrating many of the pieces I have written over the years. For an amateur composer such as myself, the results are quite exhilarating.
Here is an example:

