A progression of ideas may follow a pattern.Logical formLearned from1 sentences. A (chord progression) can be standardized.Logical formLearned from1 sentences. Melodies may fit a (chord progression).Logical formLearned from1 sentences. A number of melodies may fit (chord progressions) of a song.Logical formLearned from1 sentences. An improvisation may be accompanied by a (chord progression) of a popular song.Logical formLearned from1 sentences. A progression can be from major cities.Logical formLearned from1 sentences. A progression can be from freedom to freedom.Logical formLearned from1 sentences. Human history can be a progression.Logical formLearned from1 sentences. A philosopher may analyze a progression.Logical formLearned from1 sentences. Progressions may exist that something-is-the-case.Logical formLearned from1 sentences. Progressions can be in use.Logical formLearned from1 sentences. Progressions can be at some levels.Logical formLearned from1 sentences. Harmonies may undergo a progression.Logical formLearned from1 sentences. A tonicization may incorporate a progression of some harmonies.Logical formLearned from1 sentences. Progressions may coordinate with aspects of music.Logical formLearned from1 sentences.