4 horn spread writing guidelines

Guidelines to 4 horn spread writing

Basic Guidelines: Spread Voicings

The bottom voice is assigned to the root of the chord (unless a specific inversion is required by the chord symbol in the original lead sheet).
The middle 2 voices are usually given guide tones (3 or 7) or, less frequently, 5 and 9.
The top note can be any chord tone or available tension (avoid doubling) unless the melody is predetermined and the spread is accompanying that voicing.
In a succession of spread voicings, the 2 middle voices are usually voice lead as guide tones (observing common tones or moving stepwise).
Generally, spacing for the voices is as follows: no more than an octave between the 1st and 2nd or 2nd and 3rd voice; no more than a 10th between the 3rd and 4th voice.
Any combination of 4 horns is possible for a spread voicing that fall within acceptable range (and low interval limits).
Spreads are effective as a background voicing to a solo.
Spreads may be used under an inactive or slow moving or percussive melody where fullness of sound is desired.
Spreads may be used under an independent melody.
All voices under an independent lead may be rhythmisized for interest.
Spreads are not intended for 8th note passages.
One (or 2) of the inner voices may be melodically embellished to create interest and avoid a "block" sound.
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