Orchestration Tips
There are several really good books on orchestration. Samuel Adler's book sits next to my workstation and I refer to it often as a reference. But for me, the best instruction comes from the study of how composers orchestrate their own music. Maurice Ravel, who is celebrated as an orchestrator, wrote several pieces first for piano before realizing them for orchestra. One can see how certain pianistic effects are translated into orchestral texture and can also learn how music w