A capo (short for capotasto) is a clamp that attaches across the guitar fretboard, effectively shortening all strings at once. This raises the pitch of every string by the same number of semitones. Guitarists use capos to: (1) play songs in different keys without learning new chord shapes, (2) match their vocal range, (3) use open chord voicings in any key, and (4) create brighter, chiming tones that are impossible in standard tuning.

Our transposer uses the chromatic scale (12 semitones) to calculate which chord shape you need. If you place a capo on the 2nd fret and play a C shape, the actual sound is a D chord (C + 2 semitones = D). So if your song needs a D chord, you play a C shape with capo on fret 2. The tool does this math automatically for every chord in your progression and shows you the exact finger placement with clear diagrams.

"Find Shapes for Song Chords" (default): You know the original chords of the song (e.g., C, G, Am, F). The tool calculates which shapes to play with your capo to match those chords. "I Know Shapes, What Key?": You've learned a song with certain shapes while using a capo, and you want to know what the actual sounding chords are — perfect for communicating with other musicians or transposing to play without a capo.

This depends on your vocal range and the song's original key. A good approach: (1) Find the highest note in the song that you can comfortably sing. (2) Use the transposer to shift the chords up or down until that note sits comfortably in your range. (3) Common capo positions for vocal adjustment are the 2nd, 3rd, and 5th frets. Many singer-songwriters use a capo on the 2nd or 3rd fret to brighten the tone while keeping chord shapes manageable.

No — that's the beauty of a capo! The shapes remain exactly the same as open position chords. A C shape is always a C shape regardless of where the capo is placed. What changes is the actual pitch produced. This tool helps you figure out which familiar shape produces the desired pitch at your chosen capo position, complete with fingering diagrams so you can see exactly where your fingers go.

The most popular capo positions are: 1st fret (subtle key change, adds brightness), 2nd fret (very common for pop/rock, transposes by a whole step), 3rd fret (minor third up, good for blues), 5th fret (perfect fourth up, equivalent to the next string's open tuning), and 7th fret (perfect fifth up, creates a mandolin-like tone). Many classic songs use capo on the 2nd or 3rd fret to accommodate the singer's voice while keeping guitar-friendly open chord shapes.

Even when transposed to the same key, capo-ed chords often sound brighter and more resonant. This is because: (1) The strings are shorter, producing a tighter, more focused tone. (2) Open strings ring out more clearly against fretted notes. (3) The voicing of open chords (with unfretted strings) creates a lush, full sound that barre chords can't replicate. This is why artists like Ed Sheeran, Taylor Swift, and John Mayer frequently use capos — even when they could theoretically play the same key without one.

Absolutely! Capos work on electric, acoustic, and classical guitars. On electric guitars, a capo can help you achieve cleaner open-string voicings with distortion, create unique shimmer effects with chorus/reverb, and easily play in keys that would otherwise require difficult barre chord shapes. Many famous electric guitarists (George Harrison, Keith Richards, Johnny Marr) have used capos extensively.

Each diagram shows 6 vertical lines (strings, from low E on the left to high e on the right) crossed by horizontal lines (frets). Black dots show where to place your fingers. "X" above a string means don't play it. "O" means play it open (unfretted). When a capo is active, the top of the diagram shows the capo position — treat everything below it as your playing area. The numbers on the left indicate fret positions relative to the capo.