Page 15 of the Elegist - The Amplifier archetype
This one was... very difficult to conceptualize. Since composition classes have to share archetypes, and since maestro/cantor/elegist use the same core build, I had to find a way to latch spirits onto either the breakdancer or the harmonicist. I chose the breakdancer, and now Sir Alphonse Worthington III, Esq. can learn how to get down.

Composition Archetype

Amplifier (Archetype)

Hey, anyone can talk to the dead. It takes a real artist to make them boogie.

Compatible Classes: Breakdancer, Elegist

Amplifiers have the following class features:

Communion (Su): At 1st level, an amplifier gains the communion class feature as a 1st-level elegist, but only if she has no levels in the elegist class. If she later gains levels in the elegist class, then she progresses in the communion class feature as normal. Otherwise, she never progresses further and is always treated as a 1st-level elegist for the purpose of this class feature.

Rhythm (Ex): Amplifiers are uniquely tuned to the rhythm of music, and prolonged exposure to a good beat tends to result in some fairly impressive moves. At the beginning of the amplifier's turn, she gains or loses rhythm based on the situation.

•If the amplifier is conducting a score, she gains 1 rhythm.

•If the amplifier is not conducting a score, but is within the area of effect of a score or bardic performance, her rhythm remains unchanged.

•If the amplifier is neither conducting a score, nor within the area of effect of a score or bardic performance, she loses 1 rhythm.

The maximum amount of rhythm an amplifier can have at any one time is equal to her Dexterity modifier, minimum 1.

Spectral Beat (Su): At 1st level, an amplifier encourages any spirit bound to her to produce music in the physical world without her intervention. For most composers, asking this of a spirit would be insane, but, as an excited spirit can indeed influence the world, all an amplifier need do is get those ghostly hips moving! Each spirit bound to the amplifier (the spirit, not the player character) gains a single score containing no intro, no outro, and melodies equal to half the base number allowed in the amplifier's own scores, rounded down, minimum 1. Whenever the amplifier is not conducting a score, she may expend 1 rhythm to get her bound spirit to perform its score for 1 round. If the amplifier begins to conduct a score, opus or musica sacrae, the spirit's score ends immediately. The spirit uses its bound composer's composer level to determine the magnitude of effect of its score, and any attack rolls called for by its score have an attack modifier equal to its bound composer's composer level + the composer's Wisdom modifier. A spirit may perform its score a number of rounds per day equal to its bound composer's composer level + her Wisdom modifier. Each time the amplifier gains dissonance, the remaining number of rounds of this ability decreases by -1, even if she makes amends for that dissonance. Obviously, if a spirit leaves a composer, she cannot get the spirit to conduct its score.

Whenever the amplifier prepares her scores for the day, her bound spirits may also prepare their scores.

If the amplifier is a breakdancer, this ability replaces the dance moves gained at 1st, 4th, 8th, 12th, and 16th levels.

If the amplifier is an elegist, this ability replaces spectral presence.

Double Communion (Su): At 12th level, an amplifier selects two composer spirits rather than just one whenever she studies her composition book. This second composer is considered to be a secondary spirit, and it only grants its 1st-level ability. Despite this, the amplifier must now contend with the personality quirks of both the chosen spirits, and both spirits share the same dissonance total. This does not stack with the secondary spirit gained by an elegist at 10th level.