Bass Tuner BT1

Bass Tuner BT1 helps players tune bass guitar, cello, and other low-register instruments by showing the current note alongside its pitch deviation and frequency. These details make it easier to see how an instrument’s pitch differs from the target while making adjustments. For reference, the app also includes a tone generator covering three octaves, and its historical pitch graph provides a visual record of tuning changes. Players using a tuning standard where A₄ differs from 440 Hz can adjust that reference frequency.

Read the note and pitch display

The tuner presents the note being checked, its deviation, and its current frequency. Seeing these values together gives players more context than a note name alone when bringing a string or instrument closer to the desired pitch. The app is designed for bass instruments, including bass guitar and cello.

Use reference tones when tuning

The built-in tone generator plays reference tones across a range of three octaves. This offers another way to check pitch while tuning: players can compare their instrument with a tone rather than relying only on the tuner’s displayed reading.

Set the A₄ reference frequency

A₄ can be set to a frequency other than 440 Hz. This setting is useful when a player is tuning to a standard that uses a different reference, allowing the app’s reference pitch to match that preference.

Review tuning changes

A historical pitch graph visualizes tuning progress over time. Players can use the graph alongside the note and deviation display to review adjustments and see how the pitch has changed during the tuning process.