NOTE: All these techniques are useful no matter the style. But they are particularly important in this style is because we’re somehow recreating a realistic orchestral sound. (If we were writing a hybrid trailer cue, these techniques still apply and are very important, but then we wouldn't need to stick 100% to how an orchestra sounds in real life, because is not a realistic sound that we’d be trying to mimic)
Also, this is a short straight to point (summary) video. If any of the concepts are mentioned too quickly and you need more information, please refer to the previous topics above for a more developed explanation.