About JazzyMood
JazzyMood is a small, independent site about jazz and music listening — history and sub-genres, artists and instruments, listening for focus and relaxation — built around a set of free tools for working out tempo, note timing, scales, chord progressions, and keys. Below are the questions people usually have about it.
What is JazzyMood, exactly?
It’s a music-theory and listening reference with six free calculators built in: a BPM Tap Tempo Calculator, a Note Duration Calculator, a Scale & Mode Finder, a Jazz Chord Progression Generator, a Circle of Fifths Explorer, and a Jazz Standards Key & Tempo Guide. Alongside those there’s a blog of articles on jazz history, sub-genres, artists, and instruments, and a Museum of Jazz & Sound— a set of galleries on the legends, instruments, styles and eras, and the clubs and cities that make up the jazz world.
Who is it for?
Anyone tapping out a tempo, trying to remember what notes are in a Dorian mode, working out the changes to a ii–V–I, or just curious what key “Take Five” is usually played in. That covers students, hobby players, teachers looking for a quick reference, and listeners who just want to understand a bit more about the music. No account, subscription, or music-theory degree required.
How do the tools actually work?
Each one applies a specific, well-established piece of music theory rather than anything invented for this site. The BPM Tap Tempo Calculator averages the interval between your last taps and maps the result to the standard Italian tempo markings (Largo through Prestissimo). The Note Duration Calculator converts a tempo into millisecond and second values for every note length — whole down to thirty-second, dotted and triplet included — using standard note-value ratios, plus matching delay and reverb times. The Scale & Mode Finder spells major, the three minor scales, all seven modes, blues, and bebop dominant from any root using their fixed interval patterns. The Jazz Chord Progression Generator builds diatonic seventh chords for progressions like ii–V–I, rhythm changes, turnarounds, 12-bar jazz blues, minor ii–V–i, and Coltrane changes. The Circle of Fifths Explorershows a key’s signature, its relative minor, and its closely related keys. None of it involves audio analysis or listening to your microphone — it’s calculation from the numbers or notes you choose.
Where does the data come from?
The tools are built on standard music theory: interval patterns, note-duration ratios, and key relationships that are the same in any reputable theory textbook, not a proprietary dataset. The Jazz Standards Key & Tempo Guide is a compiled reference of commonly cited keys and typical feel/tempo for well-known jazz standards; because a standard can be played in different keys or tempos depending on the recording or arrangement, treat its entries as a common starting point, not the only correct answer. The Museum of Jazz & Sound draws its entries, images, and facts from Wikipedia and Wikimedia Commons, as noted on that page.
Are the tools free?
Yes, every tool on this site is free, with no login or paywall. The site is supported by advertising, which is how it stays free to use.
Is this music instruction or professional advice?
No. JazzyMood is general informational and educational content about music theory and jazz, not professional music instruction. How a scale, chord, or standard actually sounds depends on the arrangement and the performer, so use the tools as a starting reference and trust your own ear alongside them, especially for anything you plan to perform or teach from.
Is JazzyMood affiliated with any artist, label, or standard?
No. JazzyMood is an independent site and is not affiliated with, endorsed by, or sponsored by any artist, record label, publisher, or the rights holders of the songs and recordings referenced in its guides and tools. Song titles and recordings mentioned remain the property of their respective owners.
Who runs this and can I get in touch?
JazzyMood is run independently. There’s no large team or office behind it — just an ongoing effort to keep the tools accurate and the content useful. If you spot an error, have a tool suggestion, or just want to say hello, see the Contact page.