Acoustic Bass Guitar vs. Upright Bass: A Comprehensive Comparison for Musicians

The acoustic bass guitar and the upright bass (double bass) are both low-pitched string instruments central to many genres, but they differ significantly in design, playing technique, and tonal character. The acoustic bass guitar is a fretted or fretless guitar-shaped instrument with a hollow body, typically tuned E-A-D-G, while the upright bass is a large, unfretted, violin-family instrument tuned E-A-D-G and played vertically with a bow or plucked. This article explores their origins, mechanics, variations, and practical considerations to help you choose the right bass for your music.

Etymology / Origin

The term upright bass (or double bass) derives from its role in doubling the bass line an octave below the cello in orchestral settings. Its lineage traces back to the 15th-century violone, a large viol. By the 18th century, the instrument had evolved into its modern form with four strings and a violin-like shape, becoming a staple in classical and later jazz ensembles (Slatford, 2001).

The acoustic bass guitar emerged much later, in the mid-20th century, as a portable alternative to the upright bass. The first modern acoustic bass guitar is often credited to Ernie Ball, who introduced the Earthwood model in 1972, though earlier experiments existed. It was designed to provide a more guitar-like playing experience while producing a deep, resonant tone suitable for unplugged performances (Bacon, 2010).

How It Works

Both instruments produce sound through the vibration of strings, but their acoustic amplification mechanisms differ significantly.

The upright bass uses a large hollow wooden body with a sound post and bass bar to transmit string vibrations from the bridge to the top plate. The top and back plates vibrate sympathetically, moving a large volume of air to produce a rich, warm tone. The strings are typically bowed (arco) or plucked (pizzicato), and the lack of frets requires the player to rely on muscle memory and ear training for accurate intonation (Fletcher & Rossing, 1998).

The acoustic bass guitar relies on a smaller, guitar-like body with a soundhole. Its strings are plucked with fingers or a pick, and the hollow body resonates to amplify the sound. However, due to its smaller air cavity, the acoustic bass guitar often struggles to project low frequencies at sufficient volume, especially in ensemble settings. Many models include built-in pickups and preamps for amplification, blurring the line between acoustic and electric instruments (Hopkin, 2011).

Notation and Playing Techniques

Both instruments are notated in bass clef, but their playing techniques differ markedly.

Upright Bass

• Arco (bowed): Produces a sustained, singing tone essential for classical and jazz ballads. The bow is held underhand (German) or overhand (French).
• Pizzicato (plucked): The strings are plucked with the fingers, common in jazz, bluegrass, and rockabilly. Slap bass technique involves pulling and releasing the string against the fingerboard for a percussive effect.
• Fingering: Uses the Simandl method (1-2-4 fingering) in lower positions due to wide string spacing; thumb position is used for higher registers.

Acoustic Bass Guitar

• Fingerstyle: Similar to electric bass, using alternating index and middle fingers, or thumb and fingers.
• Pick playing: A plectrum can be used for a brighter attack.
• Slap and pop: Less common but possible; the acoustic body limits the percussive effect.
• Fretted vs. fretless: Fretted models offer easier intonation; fretless models allow glissando and microtonal expression akin to upright bass.

How to Choose Between Acoustic Bass Guitar and Upright Bass

Selecting the right instrument depends on your musical goals, physical comfort, and budget.

1. Assess your genre: If you play classical, jazz, or bluegrass, the upright bass is often expected. For folk, rock, or singer-songwriter settings, an acoustic bass guitar may suffice.
2. Consider portability: Upright basses are large and fragile; acoustic bass guitars are more compact and travel-friendly.
3. Evaluate volume needs: In unamplified settings, the upright bass projects far better. Acoustic bass guitars often require amplification to be heard over other instruments.
4. Factor in learning curve: Fretted acoustic bass guitars are easier for guitarists to adapt to. Upright bass demands dedicated study of intonation and bowing.
5. Budget: Quality upright basses are significantly more expensive than acoustic bass guitars, with entry-level uprights starting around $1,500 compared to $200 for a basic acoustic bass guitar.

Common Variations

Upright Bass Variations:

• 4/4 (full size) vs. 3/4, 1/2, 1/4: Most adults play a 3/4 size for comfort. Smaller sizes are used by students or players with smaller frames.
• 5-string upright: Adds a low B or C string below the standard E, common in orchestral settings.
• Electric upright bass (EUB): A solid-body, portable version that mimics upright bass feel but requires amplification.
• Gut vs. steel strings: Gut strings offer a warmer, more traditional tone; steel strings provide brighter sound and more volume.

Acoustic Bass Guitar Variations:

• Fretted vs. fretless: Fretless models allow slides and vibrato similar to upright bass.
• Acoustic-electric: Most ABGs come with built-in pickups and preamps for stage use.
• Short-scale vs. long-scale: Short-scale (around 30″) is more comfortable for guitarists; long-scale (34″) provides better string tension and tone.
• Body shape: Jumbo, dreadnought, and thinline bodies affect resonance and feedback resistance.

Common Mistakes

Upright Bass:

• Poor posture: Slouching or incorrect instrument angle leads to back pain and limited reach. Use a stool or adjust the endpin properly.
• Neglecting bow technique: Many beginners focus only on pizzicato, but bowing is essential for tone development and intonation.
• Ignoring left-hand shape: Collapsing fingers or squeezing too hard causes fatigue and pitch issues. Maintain a curved, relaxed hand.

Acoustic Bass Guitar:

• Expecting acoustic volume: Many players assume an acoustic bass guitar can compete with other acoustic instruments unamplified. It often cannot, leading to overplaying and hand strain.
• Using heavy strings: Overly thick strings can choke the top and reduce resonance. Light to medium gauge phosphor bronze strings are recommended.
• Ignoring feedback: When amplified, the hollow body can feed back easily. Positioning and EQ are critical.

Notable Examples in Songs

• “Take Five” – Dave Brubeck Quartet (upright bass)
• “Fever” – Peggy Lee (upright bass)
• “Come Away with Me” – Norah Jones (acoustic bass guitar)
• “I Will Follow You into the Dark” – Death Cab for Cutie (acoustic bass guitar)
• “So What” – Miles Davis (upright bass)
• “The Cave” – Mumford & Sons (acoustic bass guitar)