motif, leitmotif, mantra, motto, slogan, leitmotiv, tagline, catchphrase, trope, metaphor, topic, subtext, phrase, credo, ethos, tradition, philosophy, watchword, catchword, vibe, plotline, concept, feature, focal point, tenets, conceit, buzzword, storyline, cliche, style, undercurrent, hymn, thread, melody, highlight, song, message, overtones, focus, walpurgis, premise, rallying cry, norse mythology, pattern, characteristic, hallmark, riff, mythology, rubric, centerpiece, emphasis, undertones, attraction, spirit, sensibility, fantasia, battlecry, lyric, tone, classic, adage, apropos, narrative, subtitle, preoccupation, symbolism, strategy, element, trend, wishfulness, axiom, movable feast, anthem, iconography, fairy tale, archetypes, sameness, facet, seasonless, aphorism, maxim, ode, meanings, connotation, proverb, ethic, culture, plank, hybridity, poem, idiom, energising, hopefulness, playfulness, essence, tableau, timelessness, truism, decor, tin soldier, sounding board, themes, tenet, topos, aim, problem, thesis, contention, question, genre, issue, objective, subject, desideratum, list, document, template, threat, object, constraint, agent, event, homophonic, item, soteriological, conjunctive, curriculum, deleted, effect, ergative, fit, fitter, format

head, keynote, motive, statement, variation

augmentation, burden, concept album, core, cycle, develop, diminution, effect, elaborated, epos, essence, expatiation, fugue, gist, invert, keynote, motif, motive, opening, recapitulate, repeat, reprise, reprize, series, statement, theme park, topos, trilogy, unimaginative, variation

air, content, essay, form, idea, line, melodic line, melodic phrase, strain, subject matter, substance, thought, tune, word form

base, composition, melodic theme, musical theme, paper, radical, report, root, root word, stem