So I watched Dern's Orchestration Books video.
tl;dr There's some useful stuff in the Piston
Orchestration book.
===============
After searching online for orchestration books I found a pdf for Piston's
Orchestration.
I gave the Piston a run thru today while listening to
Mozart, Piano Concerto No. 22 in E flat with score.
Piston on Orchestration: [Book Forward]
Orchestration definition: the process of writing music for orchestra, using principles of instrumental combination ... [found] operating in the scores of Haydn, Mozart and Beethoven.
Piston brings up an interesting point: "...almost every recording produces sounds that do not exist in the score."
I found this to be true as I followed the Mozart score, especially with a few piano flourishes; or, some missing string lines -- likely buried due to poor recording tech.
Skip to Ch 19
Types of Texture, Type 1 Orchestral Unison:
Main Purpose: Discover how the orch gets used to convey the composer's thought.
Vital: Do not make a meal of the analysis (i.e., overthinking it.) Simply look to see why & how the composer did certain things. Sometimes, it is by luck, or no good reason.)
Tip 1: First follow one inst. through the score to see/hear its role.
Tip 2: Choose a familiar work as a starting point.
Tip 3: Hear in your head what you see in the score.* Use a piano to help orient to the pitch.
[*
I have since discovered, Adler's Study of Orchestration acknowledges Piston for stressing this facility.]
Tip 4: closely look at the separate elements in shorter segments. Opt to skip over problematic areas until one is more skilled.
1st step: MUSIC TEXTURE: Where are the melodies, harmonic background, pedal tones, counterpoint, rhythmic elements in the score? Recognize the elements + textures.
2nd step: What Instrument groups are used: strings, winds, brass, perc, etc. (Example: Varese uses tons more perc than a normal classical score.)
3rd step: compare how contrasting elements and inst. distributions appear. I.e., a melody moving from strings to the woodwinds (canon); any soloed instruments(s); solo inst moves to tutti orch or solo piano to string accompaniment; any ensemble combos (piano and strings or woodwinds...).
4th step: look at each element separately; examples: how pedal tones are used -- octave doubling? or some other interval?; part writing for string section or amongst the winds; tuttis.
Part 2 to follow.
Best, Bill