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A hierarchy of evidence, comprising levels of evidence (LOEs), that is, evidence levels (ELs), is a heuristic used to rank the relative strength of results obtained from experimental research, especially medical research. There is broad agreement on the relative strength of large-scale, epidemiological studies.
In his book The Rhythms of Tonal Music, Joel Lester notes that, "[o]nce a metric hierarchy has been established, we, as listeners, will maintain that organization as long as minimal evidence is present". [10] Metric levels: beat level shown in middle with division levels above and multiple levels below.
Schenkerian analysis is a method of analyzing tonal music based on the theories of Heinrich Schenker (1868–1935). The goal is to demonstrate the organic coherence of the work by showing how the "foreground" (all notes in the score) relates to an abstracted deep structure, the Ursatz.
Often, educators may see the taxonomy as a hierarchy and mistakenly dismiss the lower levels as less important for teaching. [ 17 ] [ 18 ] In response, others have argued that the learning of lower levels supports the development of skills at higher levels, and in certain fields, the most critical skills may reside in the lower levels, such as ...
Western music defines pitches around a central reference "concert pitch" of A 4, currently standardized as 440 Hz. Notes played in tune with the 12 equal temperament system will be an integer number h {\displaystyle h} of half-steps above (positive h {\displaystyle h} ) or below (negative h {\displaystyle h} ) that reference note, and thus have ...
Tonality is the arrangement of pitches and / or chords of a musical work in a hierarchy of perceived relations, stabilities, attractions, and directionality. In this hierarchy, the single pitch or the root of a triad with the greatest stability in a melody or in its harmony is called the tonic. In this context "stability" approximately means ...
For those wondering, Grant Sabatier, a voice in the FIRE (Financial Independence, Retire Early) movement, offers a perspective with his seven-level framework of wealth.
The model of hierarchical complexity (MHC) is a formal theory and a mathematical psychology framework for scoring how complex a behavior is. [4] Developed by Michael Lamport Commons and colleagues, [3] it quantifies the order of hierarchical complexity of a task based on mathematical principles of how the information is organized, [5] in terms of information science.