Richie Bennett Audio Note Frequency Chart Alternative
Static reference charts are useful. Interactive tools are better. BeatKey Note Frequency Calculator adds Hz-to-note conversion, MIDI numbers, 808 tuning, and a full production toolkit to the data you already look up.
Try BeatKey Note Frequency Calculator FreeStatic Chart vs Interactive Tool
Richie Bennett Audio
Static note frequency chart
- Lists note names and Hz values
- No interactive Hz input
- No MIDI note numbers
- No production workflow integration
BeatKey Note Frequency
Interactive production tool
- Type any Hz value, get note name + MIDI instantly
- All 128 MIDI notes with filterable octave view
- 808 tuning guide with full C1 to B3 chart
- Connected to BPM detector, chord finder, and more
Feature Comparison
| Feature | Richie Bennett | BeatKey |
|---|---|---|
| Price | Free | Free |
| Account required | No | No |
| Note to Hz lookup | Yes (static chart) | Yes (interactive) |
| Interactive Hz input | No | Yes |
| Cents accuracy display | No | Yes (color coded) |
| MIDI note numbers | No | Yes (all 128 notes) |
| Filterable MIDI chart | No | Yes (by octave) |
| GM drum map | No | Yes (19 drum sounds) |
| Famous freq shortcuts | No | Yes (432, 440, 528 Hz, etc.) |
| 808 tuning guide | No | Yes (DAW instructions) |
| EQ frequency chart | No | Yes |
| Vocal range chart | No | Yes (7 voice types) |
| BPM and key detector | No | Yes (beatkey.app) |
| Chord finder | No | Yes (chords.beatkey.app) |
What Is Richie Bennett Audio?
Richie Bennett Audio (richiebennett.audio) is a music education and sound engineering blog. It publishes tutorials, reference guides, and articles for recording engineers and musicians. The note frequency chart is a static reference page listing note names and their Hz values, useful for quick lookup.
BeatKey Note Frequency Calculator is a dedicated interactive production tool. Type any Hz value and instantly get the nearest note, MIDI number, and cents accuracy. The tool is purpose-built for the DJ, producer, and mixing engineer workflow, not general music education.
When You Need More Than a Chart
You have an unknown Hz value
If you are looking at a spectrum analyzer and see a resonance at 293 Hz, you need to type it in and get back "D4 (MIDI 62), 0.5 cents sharp." A static chart makes you scan rows manually. BeatKey's Hz converter gives the answer instantly.
You need MIDI note numbers
DAWs, synthesizers, and drum machines use MIDI numbers, not note names. BeatKey's full 128-note MIDI chart shows every note with its MIDI number, Hz value, and enharmonic. Filterable by octave.
You are tuning 808 bass lines
The 808 Tuning Guide shows the exact Hz for every note from C1 to B3 (the standard 808 range), with annotations for sub vs boom vs punch character and DAW-specific pitch instructions.
You want everything in one workflow
Detect BPM and key with beatkey.app, look up chord progressions with chords.beatkey.app, calculate delay times with delay.beatkey.app, find scale notes with scales.beatkey.app, and look up frequencies with notes.beatkey.app. One integrated suite, all free.
BeatKey Tools Suite
Six free tools, all connected. Start with note frequencies, end with a finished mix.
BPM + Key Detector
Analyze tempo and musical key from any audio file
Interactive Camelot Wheel
Plan harmonic DJ transitions with one click
Chord Finder
Detect chord progressions in uploaded audio
BPM Delay Calculator
Sync delay and reverb times to your project tempo
Scale Finder
Look up notes for 18 scales across all 12 keys
Note Frequency Calculator
Convert between note names, MIDI numbers, and Hz
FAQ
Is BeatKey completely free with no signup?
Yes. BeatKey Note Frequency Calculator is 100% free with no account required, no ads, and no usage limits. All calculations run locally in your browser.
How accurate is BeatKey's Hz to note conversion?
BeatKey uses the equal temperament formula (f = 440 x 2^((n-69)/12)) for exact Hz values. The converter shows the nearest note and the cents deviation, so you know exactly how close your input is to a pure note. Color coding shows green (within 5 cents), yellow (5-20 cents), and orange (20+ cents).
Does BeatKey cover the full piano range and beyond?
Yes. The MIDI note chart covers all 128 MIDI notes from C-1 (MIDI 0, 8.18 Hz) to G9 (MIDI 127, 12,544 Hz). The 88-key piano range runs from A0 (MIDI 21) to C8 (MIDI 108). All frequencies shown with note names, enharmonics, and MIDI numbers.
Can I look up the Hz for a specific note like A4 or middle C?
Yes. The main note frequency chart on notes.beatkey.app shows Hz for all notes by octave. You can also use the Hz-to-note converter in reverse by entering a known Hz value, or use the quick reference at the top showing common notes including middle C (261.63 Hz / MIDI 60) and A4 (440 Hz / MIDI 69).
Try BeatKey Note Frequency Calculator
Interactive Hz-to-note conversion, MIDI charts, 808 tuning guide, EQ chart, and the full BeatKey Tools suite. Free, no account.