Bass Standard Tuning Frequencies Lookup
Bounded standard four/five string bass A4=440Hz equal-tempered open tunings.
Description
Look up nominal open-string frequencies for standard four- or five-string bass tuning.
Standard bass tunings can be shown as pitch names and nominal equal-tempered frequencies. This lookup supplies the built-in four- or five-string tuning reference.
When to use this tool
Look up nominal open-string frequencies for standard four- or five-string bass tuning. Use it when the input measurements and conventions below match the operation you need.
- Prepare strings, respecting the measurement basis and boundaries below.
- Compare the worked example with your intended operation before reusing its result.
How to use the tool and how it works
- Enter every field in the input table using the stated units and exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
Select the exact supported four-string or five-string label from the table. The tool returns a frequency list in low-to-high string order: E1-A1-D2-G2 for four strings and B0-E1-A1-D2-G2 for five, using an A4 = 440 Hz convention.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| strings | Strings. | Exact value: "4-E1-A1-D2-G2", "5-B0-E1-A1-D2-G2" |
| strings | Built-in entry |
|---|---|
| "4-E1-A1-D2-G2" | [41.20344461410875,55,73.41619197935188,97.99885899543733] |
| "5-B0-E1-A1-D2-G2" | [30.86770632850775,41.20344461410875,55,73.41619197935188,97.99885899543733] |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.reference | The stored entry for the exact selected key; its type may be text, a number or a list. |
{
"input": {
"strings": "4-E1-A1-D2-G2"
},
"output": {
"result": {
"reference": [
41.20344461410875,
55,
73.41619197935188,
97.99885899543733
]
}
}
}Limitations and assumptions
- These are nominal reference frequencies, not measurements. Alternate tunings, intonation, string tension and instrument setup are not evaluated.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
Check the intended score, tuning or device configuration before applying a numerical reference. Use notation-aware or audio measurement methods when the task requires interpretation of a score or actual sound. Compare the scope of the nearby tools below before substituting one.
References
Similar or alternative tools
- Ukulele Tuning Frequencies Lookup
Bounded standard soprano/concert/tenor ukulele equal-tempered A4=440Hz tunings; baritone excluded.
- cents between two frequencies
Signed interval in cents from a positive reference frequency to a positive target frequency.