We need only three elements to compose music: Tempo + 3JCN notes + 3JCN rests
Set the tempo
Enter 3JCN music notes and rests into the textbox below (Look at these examples to know common notes, rests and durations)
Examples: Copy and paste one of the following 3jcn musical line samples into the text box below and hear it:
6c.5 6c.5 6d1 6c1 6f1 6e2 6c.5 6c.5 6d1 6c1 6g1 6f2 6c.5 6c.5 7c1 6a1 6f1 6e1 6d2 -6b.5 -6b.5 6a1 6f1 6g1 6f4 ("Happy Birthday" Song contains notes only)
+6c1.5 6d.5 6b5 6d1 6g1 6b1 6a1.5 +6f.5 +6d4 6b1.5 6a.5 6g5 5b1 6e1 6g1 6f1.5 6d.5 5b4 (from "Only You and You Alone" Song contains notes only)
6g.5 6f.5 6f3 1 6a.5 6b.5 +7c.5 7d.5 7e.5 7f.5 7e.5 7d.5 7d3 1 7d.5 7d.5 7c.5 -6b.5 6a.5 6g.5 -6b1 6a.5 6a1.5 (from "Yesterday" Song contains notes and rests)
6a1/3 -6b1/3 6a1/3 7d2.5 6a.5 6g1/3 6a1/3 6g1/3 7d2.5 6g.5 6a2.5 6g.5 6g1/3 6f1/3 6e1/3 6f4 6a1/3 -6b1/3 6a1/3 7f2.5 6a.5 6g1/3 6a1/3 6g1/3 7e2.5 7d.5 7c2.5 -6b.5 -6b1/3 6a1/3 6g1/3 6a4 (from "Serenade" Song contains notes only)
7d3 +7c.5 6b.5 +6f3 6b.5 7d.5 +7c.5 7e7.5 7d.5 +7f2.5 7e.5 7d.5 +7c.5 7e3 +7c.5 +7c.5 6b6.5 (from "The last of Mohicans")
Usually, people have to spend months or years to learn Western music theory to become a composer/songwriter. Because there are a lot of stuffs in Western music theory such as staff (stave), time signature, key signature, measure, vertical bar lines, bass clef, treble clef, tie, slur, dot, tuplets, etc. Now, you just need five minutes to know 3JCN notes and rests, then you can start to write your own songs.
Later on, you can download your song's midi file. Then you can import the midi file into music softwares (DAW) like Steinberg Cubase, Ableton Live, Garageband, Cakewalk Sonar, FL Studio, Apple Logic Pro, Sony Acid, etc. for editing, recording, mixing and mastering the audio file. In short, you don't need to know Western theory to produce your songs.