無料 online chord progressionジェネレーター. 作成 chord progressions in any key と style. Choose from classic presets or generate random progressions. Perfect for songwriting と music theory practice.
This chord progressionジェネレーター helps musicians と songwriters discover new chord sequences. It supports multiple keys, modes, と musical styles. Whether you are stuck on a song, learning music theory, or just exploring, this tool provides instant inspiration. すべて processing happens in your browser.
A chord progression is a sequence of chords that forms the harmonic foundation of a song. It creates movement と tension that resolves throughout the piece. Common progressions like I-V-vi-IV have been used in thousands of hit songs.
Roman numerals represent chords relative to the key. Uppercase (I, V) means major chords, lowercase (vi, iv) means minor chords. For example, in C Major: I = C, V = G, vi = Am, IV = F. This system works in any key.
はい! Chord progressions themselves cannot be copyrighted. Many famous songs share the same progressions. Feel free to use any progression you generate here as a starting point for your own creative work.
Major modes generally sound bright, happy, と resolved. Minor modes tend to sound darker, sadder, or more mysterious. The mode you choose affects the emotional quality of the chords と the available chords in the key.
The style setting influences which chords と progressions are preferred. Jazz favors extended chords (7ths, 9ths) と circle-of-fifths movement. Blues uses dominant 7ths と specific turnarounds. Pop favors simple, catchy progressions.