An article's assessment is generated from the class and importance parameters in the {{WikiProject Percussion}} project banner on its talk page:

{{WikiProject Percussion|class=|importance=}}

Quality scale

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The following values may be used for the class parameter:

The class should be assigned according to the quality scale below.

Importance scale

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The following values may be used for the importance parameter:

Importance The article's importance, regardless of its quality
Top Extremely important, even crucial, to its field, and very significant beyond it. Instrument categories, technical overviews, percussion music theory, main portals.
High Contributes a substantial depth of knowledge with significant impact in other fields. Percussion instruments, regionally, culturally or genre specific percussion instrument groupings.
Mid Adds important further details within its field, with some impact beyond it. Notable percussionists, notable percussion ensembles, notable percussion instrument makers.
Low Contributes more specific or less significant details, or is mainly of specialist interest.
NA NA (Non Articles). This is normally redirects, subsections of articles, and project pages like templates or talk pages.
??? Default, priority unknown because nothing is assigned to its priority.