Skip to content

Fretless Bass Guitars article

Fretless Bass Guitars Explained: Features, Types and Tips

Take the frets off a bass and you lose the safety net — here's what fretless bass guitars actually give you in return.

Fretless Bass Guitars Explained: Features, Types and Tips

Take the frets off a bass and you don't just lose a few metal strips — you lose the safety net. What's left is an instrument that can slide, sing and croon in a way a fretted bass simply can't. Here's what fretless bass guitars actually are, how they work, and why players who fall for them rarely go back.

What Makes a Bass "Fretless"

On an ordinary bass, metal frets divide the fingerboard into fixed semitone steps — press behind a fret and the note is decided for you. On fretless bass guitars, there's nothing there. The string is stopped directly against bare fingerboard, and the player has to place each fingertip exactly where a fret would have been, by ear and by eye. It's the same basic principle as playing a double bass, cello or violin.

What That Actually Buys You

  • Continuous pitch: you can glide smoothly between notes instead of stepping between them.
  • Real vibrato: rolling the fretting finger moves the pitch above and below centre, cello-style.
  • A vocal, singing tone: the string meeting wood rather than metal softens the attack.
  • Microtonal inflection: you're not locked to the semitone grid at all, if you don't want to be.

The trade-off is obvious the first time you pick one up: nothing corrects you if your finger lands in the wrong place. Intonation becomes entirely your responsibility.

Lined or Unlined?

TypeWhat it offersWatch out for
Lined fretlessVisible position markers, easier orientation for newer playersEasy to start "looking" instead of listening
Unlined fretlessClean traditional look, encourages pure ear-led playingMuch less forgiving without strong intonation skills

A Very Short History

Player modifications came first — Bill Wyman has claimed he stripped the frets off a cheap Japanese bass back in 1961. Ampeg's AUB-1, launched in 1966, is widely cited as the first commercially available fretless electric bass, with Fender following in 1970 with a fretless Precision Bass. But the player who really changed how the world heard the instrument was Jaco Pastorius, who removed the frets from a Fender Jazz Bass around 1969-70 and turned fretless into a genuine musical voice across jazz, fusion and funk. As Pastorius himself put it: "The fretless is just having to hit the notes in tune." Everything else about playing it, he reckoned, was close to a fretted bass.

Strings, Wood and Wear

String choice changes the character enormously: roundwounds bring brightness and that vocal "mwah," flatwounds sound smoother and darker, and tapewounds lean toward a muted, upright-style thump. Whatever you choose, repeated string contact marks a bare fingerboard over time, which is why some builders use harder woods or a protective coating rather than leaving the wood exposed.

Is It Right for You?

It usually pays to start on a fretted bass and bring fretless in later, once your ear and your left hand are both ready for the extra responsibility. If you're genuinely drawn to the sound already, our beginner's guide walks through exactly how to start without bad habits creeping in, and our buyer's guide covers what actually matters when you go shopping.

The Bottom Line

This instrument trades the safety of fixed pitch for a genuinely expressive, singing voice that a fretted instrument can't fully match. It asks more of your ear, but for a huge number of players, that's exactly the point.

Frequently Asked Questions

What makes these different from regular basses?

There are no metal frets dividing the fingerboard, so the player controls pitch entirely by finger placement, enabling smooth slides, vibrato and microtonal inflection a fretted bass can't produce.

Who popularised the sound?

Jaco Pastorius, who removed the frets from a Fender Jazz Bass around 1969-70 and turned the sound into a genuine musical voice in jazz, fusion and funk, though earlier player modifications existed before him.

Are they harder to play than fretted basses?

Yes, generally. Nothing corrects an inaccurate finger placement, so intonation becomes entirely the player's responsibility rather than something the instrument handles for you.

What's the difference between lined and unlined fretless basses?

Lined models show position markers for easier orientation, while unlined boards are completely clean and encourage pure ear-led playing, which is less forgiving for newer players.

Do they sound like an upright bass?

They can lean that way with the right strings and setup, but pickups, electronics and playing style can just as easily make one sound bright, aggressive or heavily processed instead.

What strings suit fretless bass guitars best?

It depends on the tone you want: roundwounds for brightness and "mwah," flatwounds for a smoother, darker sound, or tapewounds for a muted, upright-inspired character.

About Charlotte Bennett

Charlotte grew up in a house where the record player was never off, and turned a teenage habit of scribbling gig reviews into a career spent writing about the music she loves. Based in London, she still spends her weekends digging through the crates in the city's second-hand shops and catching new bands in small rooms before anyone else has heard of them. She writes about guitars, records and the stories behind the songs.

Comments

Leave a comment

Comments are read before they appear. Links cannot be published.

Your rating (optional)