A variant may pertain-to a chord.Logical formLearned from3 sentences. A chord can be in major.Logical formLearned from3 sentences. (Chord progressions) may vary throughout a song.Logical formLearned from3 sentences. (Power chords) can be inspirational.Logical formLearned from3 sentences. A chord can be struck.Logical formLearned from3 sentences. A co-inventor may pertain-to a (chord system).Logical formLearned from3 sentences. Some bars can be constituted-of-or-filled-with chords.Logical formLearned from3 sentences. Chords may pertain-to a song.Logical formLearned from3 sentences. A (chord progression) can be in a song.Logical formLearned from3 sentences. A (chord progression) may undergo a start.Logical formLearned from3 sentences. A measure of 2/4s may move a (chord progression).Logical formLearned from3 sentences. A (major chord) can be dominant.Logical formLearned from3 sentences. A sequence may pertain-to a (chord progression).Logical formLearned from3 sentences. A chord may pertain-to a guitar.Logical formLearned from3 sentences. A chord may be termed.Logical formLearned from3 sentences.