Finish your own song
A whole song in this grid fits in a link: about four characters per note, plus eight letters for the chords.
You now have every tool you need for an eight-bar song: a melody with a clear shape, a motif that repeats and changes, chords under it, a rhythm with long and short notes, and two phrases that ask and answer. This unit puts them together in a working order. Writing a song rarely goes in a straight line, so treat the steps below as a plan you can come back to, not a rule you must follow from top to bottom.
Step 1: chords first or melody first
Songwriters start both ways. If you begin with chords, choose four for bars 1 to 4 and four for bars 5 to 8. A safe plan is to end bar 4 on G (V) and bars 7 and 8 on G then C (V then I). The grid in this unit already holds that plan: C, Am, F, G, C, F, G, C. If you begin with the melody, hum or tap a one-bar motif first and add chords afterwards with the bottom row or the Suggest chords button.
Step 2: the motif and the first phrase
Write bar 1 with notes from its chord on beat 1, then build bars 2 and 3 from it with a repeat, a variation or a sequence. Let the line climb a little. In bar 4, stop on re, sol or ti and hold it, so the first phrase asks a question. Play it back several times at a slow tempo. If a note on beat 1 sounds sour against the chord, move it one row up or down until it turns solid.
Step 3: the answer and the high point
Press the copy button so bars 5 to 8 repeat bars 1 to 4. Keep bar 5, perhaps bar 6, and rewrite the ending: reach the highest note of the song in bar 6 or 7, then walk down by step to do in bar 8 and hold it for the whole bar. Check the panel: bar 4 should read open and the last note closed. The picture below shows one common plan, with the letters marking ideas and the boxes in bold marking the two endings.
Step 4: rhythm, tempo and sound
When the notes are settled, give the rhythm some life. Switch on Split beats if you want eighth notes, lengthen the notes that end phrases, and leave one or two empty cells so the tune can breathe. Try the tempo at 72 and at 120 bpm: a slow tempo suits a gentle tune with long notes, a faster one suits a busy tune. Then compare the two instruments. The piano sound sustains each note for its full length; the pluck sound, made with a plucked-string model, rings and fades by itself like a guitar or harp string. Finally pick a chord rhythm: once a bar for a calm feel, every beat for more drive.
Step 5: share it
Press Share link. The song maker writes the whole song into the address: tempo, instrument, chords and every note, about four characters per note. Anyone who opens the link sees this page with your song loaded in the first grid. Nothing is uploaded or stored on a server; the song lives only in the link, so keep a copy if you want to come back to it. Use your own melodies. Copying a melody from a song that is still under copyright and sharing it is not the same as writing your own, even if the grid makes it easy.
Try it
The grid below starts with the chord plan C, Am, F, G, C, F, G, C and an empty melody. Follow steps 2 to 5, play your song from start to finish with Loop on, and fix one thing each time it comes round. When the panel shows an open bar 4, a closed last note and at least one repeat, make a link.
Drag to turn. Scroll or pinch to zoom.
Motif in bar 1. Repeat or vary it. Bar 4 ends open on V. High point in bar 6 or 7. Bars 7 and 8: V then I, last note do.
| open ending | re, sol or ti over V |
| closed ending | do over I, after V |
| sequence | a pattern repeated higher or lower |
| pale note | not in the bar's chord; fine if short |
| share link | the whole song stored in the address |
- In the chord plan C, Am, F, G, C, F, G, C, which bar has a half cadence?
- Bar 4
- Bar 2
- Bar 8
- Which chords end the song with an authentic cadence?
- G then C
- C then G
- F then Am
- Where is a good place for the song's highest note?
- Bar 6 or 7
- Bar 1
- Every bar
- What does the Share link store?
- The whole song in the address
- A recording on a server
- Only the tempo
- How does the pluck sound differ from the piano sound here?
- It rings and fades by itself like a plucked string
- It is always louder
- It plays only chords
- A beat-1 note is pale against its chord. What is a quick fix?
- Move it one row until it turns solid
- Delete all chords
- Raise the tempo
- Which tempo suits a gentle tune with long notes?
- About 72 bpm
- About 160 bpm
- Any tempo sounds the same
- You copy a melody from a song still under copyright and share it. Is that writing your own song?
- No
- Yes, if the tempo changes
- Yes, if the chords change
- Put the song-writing steps of this unit in order.
- Plan chords so bar 4 ends on V and bars 7 and 8 go V then I.
- Build the first phrase from a one-bar motif and end it open.
- Copy, then rewrite the ending: high point in bar 6 or 7, last note do.
- Polish rhythm, tempo and sound, then share the song as a link.
Sources for this course (13)
- Fundamentals of Music Theory, UMass Amherst, Unit 14 Melody: repeated notes, conjunct (stepwise) and disjunct (skip, leap) motion, melodic contour (fundamentalsofmusictheory.umasscreate.net/unit-14)
- Humanities LibreTexts, Music Appreciation II 1.1 Melody: contour, conjunct and disjunct, range, motive (human.libretexts.org)
- Open Music Theory (Lavengood, Peterson et al., CC BY-SA)
- chapters Roman Numerals (uppercase major, lowercase minor, I ii iii IV V vi vii° in major)
- Introduction to Harmony, Cadences and Phrase Endings (authentic cadence V-I, half cadence ends on V)
- The Phrase, Archetypes and Unique Forms (period = antecedent ending with a weaker cadence, often a half cadence, and consequent ending with a stronger one; antecedent often four bars)
- Glossary (sequence model and copy) (viva.pressbooks.pub/openmusictheory)
- Robert Hutchinson, Music Theory for the 21st-Century Classroom 7.4 Cadences and 11.4 Phrase (most phrases are four bars) (musictheory.pugetsound.edu/mt21c)
- musictheory.education 2.14 Degrees I, IV and V: tonic, subdominant, dominant
- Duke University Sonic Dictionary, Melodic Sequence (a motive repeated at a higher or lower pitch)
- Wikipedia and IMSLP, Twelve Variations on "Ah vous dirai-je, Maman" K. 265/300e (French melody first printed 1761; Mozart, 1781 or 1782, Wolfgang Plath's dating; first published 1785)
- PLOS ONE 2020, Martin-Castro and Ucar, "Conductors' tempo choices shed light over Beethoven's metronome" (Maelzel patented the metronome in 1815; Beethoven added marks to his first eight symphonies) and Boston Baroque, Martin Pearlman (the marks were added in 1817)
- All melodies in the lessons are written for this course except the French folk melody of 1761, which is in the public domain. Timing values computed: one beat = 60 / bpm seconds.
Checked: 2026-10-17