Unsure what a scholarly journal article looks like? This Interactive tutorial identifies sections that should appear in a scholarly journal article.
For more detailed help in differentiating between scholarly, trade, professional and general, see Scholarly or General?
Music Index Online or ERIC. ERIC is the largest education database, and will provide you with scholarly journal articles. Music Index Online covers music, and will provide you with a mix of scholarly journal articles, and trade journals/magazines.
No luck? Try Education Source.
Image Source: Beethoven's 15th String-Quartet. Public Domain. Wikimedia Commons.
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