NAIF • DICTIONARY ONE.COM • Definition of Naif

... a little prelude, as if a bluebird were tuning his throat, we are enveloped in the key of the symphony (A major) and the Spring runs lilting up the 'cellos to the violins (which are divided in the naif archaic interval of the tenth, too much ignored in our over-colored harmonies). The second subject is propounded by the oboes (in the rather unusual related key of the submediant). This is a lyrical and dancing idea, and it does battle with the underground resistance of the Winter motives. ...

— Contemporary American Composers • Rupert Hughes