Bass Trombone vs Tenor Trombone – the Differences, the Similarities, and the in-Betweens

If you are interested in learning the trombone, you might be surprised that the name is just a blanket term for a brass instrument that uses a sliding mechanism to shift from note to note.

For the untrained eye, they might look similar but they are actually not.

By the end of this article, you’ll learn about…

  • The characteristics of bass and tenor
  • Their differences from each other
  • How they are played differently
  • What the other players suggest

What Are Bass and Tenor Trombones?

A trombone is famously known for its unique playing motion as it appears to both shorten and lengthen whenever it is played. This is because the instrument relies on the variation of its telescopic sliding mechanism to vary the pitch.

The basses and tenors are the two main types of the said instrument. Skilled trombonists often hope to master one of the instruments, if not both.

As for which one is better, the best kind of trombone will always be the broken one. It’s always gonna be the trombone that doesn’t play a sound.

Kidding aside, the bass and tenor are just two variations of the instrument. So, you mean to say that there are MORE types under the term? Yes, there are!

Different Types of Trombone

If you are that interested, here are some of the different types aside from the two:

  • Contrabass
  • Alto
  • Soprano
  • Sopranino and Piccolo Trombones

There are even hybrid ones that feature valves, or even a combination of that and the sliding mechanism. They are the…

  • Valve Trombone
  • Superbone
  • Tromboon

While this might seem a lot, we will look closely at the comparison of the instruments in this article.

Before anything else, do you think sliding a long piece of metal doesn’t look awfully similar to something? Say, like sheathing and unsheathing a very long sword from a scabbard?


If you think so, then you’re definitely on to something, Bud. Trombones aren’t exactly called that name all the way until the 18th century.

Up until then, it was referred to by the French as the “Saqueboute” and the English, “Sackbut.” This comes from the French word “Sacquer” which means to draw out a sword or something similar.

Bass Trombone vs Tenor Trombone

In this section, we will show you how these two instruments differ from each other according to a set of characteristics.

But, hey! No matter which instrument you choose to play. Just remember that all trombones, big and small, are beautiful.

Sizing Up

When you look at both the bass and tenor, it is almost as if you’re seeing two of the same thing. But that’s understandable as they have hardly any physical differences at all.

In general, basses have a bigger bell, a more sizable bore size, and a larger mouthpiece. These modifications allow the instrument a darker, richer sound when playing the low notes while sounding hazy and duller as the notes get higher.

Tenor & Bass Trombones

But good bass players like the ones here can often play notes at incredible ranges. Something that is only possible after years of practice and dedication.

In contrast, the smaller stature of the tenor allows it to sound sharper and livelier while hitting the high notes while sounding less powerful in the lower register.

Length of Tubing

Starting from the length of the tubing, both the bass and the tenor come in at 9 feet in their entirety or 2.7 meters when fully outstretched.

Aside from its length and general design, this is the only figure where the two instruments are exactly similar. From here on, everything is pretty much different from each other.

Bore Size

Expressed in thousands of an inch, the bore refers to the inner diameter of the inner slide. This measurement remains fairly consistent through the instrument’s tubing save for the bell flare, where the tubing gets wider, and the mouthpiece where the tubing assumes a tapered shape.

Trombone SlidesSmaller bore horns produce a brighter and sharper sound whereas larger bore horns make a warmer, bigger sound.

Bore size also affects the playing characteristic of the instrument. Small-bore horns require less air to play whereas larger bore horns need more breath to produce sound.

The typical bore sizes vary from jazz models at 0.450”, to 0.500” for student models, 0.547” for orchestral models, and all the way to 0.562″ for bass trombones.

Bell Size

Thanks to its distinctive shape, even those who are not acquainted with the instrument can easily identify the bell.

Tenor and Bass Trombone Bells

The air that the player blows from his mouth travels throughout the instrument and emerges out of the bell as the distinct, metallic sound.

Valves and Triggers

One of the main differences between the two is the presence of different valves and triggers on the two types of trombones.

The Tenor is pretty much straightforward and does not include any tubing within the main section. This configuration earned them the nickname “Straight Tenor.”

On the other hand, the bass is a little bit more complex than the former. Brasses have a variety of configurations that affect the range of keys that the instrument can be played in.

Mainly, these are the single rotor configuration and double rotor configuration. Other times, they can also be referred to as the independent and dependent configurations, respectively.

Types of Tenor and Bass Trombones

Single Rotors are equipped with an “F rotor” pretty much like the Bb/F tenor. However, it comes with a larger bore, more gradual bell taper, and bigger bell diameter.

Meanwhile, basses equipped with double rotor systems have two sets of rotors. But to engage the second, both the valves should be engaged at the same time.

Thus the key variations are Bb (open valves), F (first valve engaged), and Eb (both valves engaged).

There is also another type called a double in-line independent rotor system available to the brasses. These types of the instrument allow both rotors to be engaged separately from each other.

The result is an addition of an extra key variation that the instrument can play in. These are the Bb (open), F (first valve engaged), Eb (both valves engaged), and G (second valve engaged).

To allow for greater flexibility and key permutations, most independent system instruments have an additional slide for the second rotor section. Read this article, to give you a better insight on what bass trombones to choose.


This section covers the more technical side of playing the instrument. But wait, Just take a look at what the great Frank Sinatra has to say as a testament to the trombone’s prowess:

Pitch and Range

Contrary to common knowledge, the bass and tenors are both pitched at B♭. This makes the bass and tenor essentially the same.

The only difference is that the bass comes with two extra rotary valves. These valves allow the instruments to play lower notes.

The first valve transposes the instrument to an F while the second valve transposes the instrument to either G♭ or G. If a player engages both valves at the same time, it will transpose the key to either a D♭ or D depending on the instrument’s configuration.

Tenor and Bass Trombones Ranges

When it comes to range, several factors affect the effective range of both instruments. Without any fixtures, the bass can play from B♭1 to B♭4 while the tenor can play from E2 to F5.

But you know what, a fixture can allow the tenor to hit lower notes and lower the fundamental note from B♭1 to F1?

Can’t believe it? We’ll have more of that later.

What the Seasoned Players Say

While the two instrument’s ranges overlap upon each other, most trombonists are very particular when it comes to playing certain notes?

Low Register

What Trombonists SayTrue to their nomenclature, the bass trombone is easier to play at the lower register. Skilled players can easily play the low notes down into the pedal range.

The larger capacity of the bass also allows quick translation between notes below the staff while the tenor’s response is sluggish and not as crisp as the former.

When it comes to playing low notes, another instrument, the tuba comes to mind. Read about how the two are different here.

Middle Register

The middle register seems like a sweet spot to both instruments as both can easily produce a full and enriched sound.

High Register

As expected, the tenor has the advantage when the notes get higher and higher on the staff. Tenors can easily attain and sustain notes in the high register whereas it is more taxing to the basses.


The timbre or the characteristics of a trombone’s sound varies from register to register. In general, trombones can be used to play light or delicate music or heavy and menacing.

In the video below you can listen to the instruments in the different registers.

In the low register, both instruments sound dark, heavy, and somber in character. It is most often associated with tense, scary, or sometimes majestic music.

Things start to get different in the middle register. The tenor’s timbre can be described as sustaining and full whereas the bass can only be described as darker and even more menacing.

Finally, in the high register, the tenor can boast a brilliant and mellow sound while the bass can only be described as unreliable or even sketchy at best.

Among other things, if you really want to have a taste of real brass music, make it a point to join Trombone Shorty’s #TremeThreauxdown:


As we have hinted earlier, the trombone’s got another trick up its sleeve to extend its register, specifically towards the lower notes. This is referred to as the F-attachment.

The F-attachment is a trigger-operated rotary valve that allows a tenor trombone to play the pedal range. It forces air to go through an extra length of the coiled tube up in the bell section.

Tenor Trombone with the F-AttachmentIf you’re wondering why this configuration is referred to as the F-attachment, you have all the right in the world to do so. This is because the valve, when engaged, transposes the instrument down a perfect fourth into the key of F, ergo giving it its name.

The F-attachment allows trombonists to play lower notes and avoid playing long positions. This configuration also gives players a practical advantage when playing hard passages as it prevents them from sliding the tube over long distances.

The shape of the coiled tubing comes in two basic types: the open wrap type and the closed wrap type.

The open wrap tends to be clearer and more resonant while a closed wrap doesn’t offer the same clarity but is more compact and offers more resistance than the former.

Useful Links


The trombone is a wonderful sub-category of brass with thousands of years of history. I hope that this article about the bass trombone vs tenor trombone gives you the enlightenment that you are looking for.

So, what do you think would fit you the best? The bass or the tenor? Don’t hesitate to share your thoughts with us in the comments below.

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