Music, Instruments & Free Online Tools
Tuners for six instruments. A free 16-step drum machine. A zero-drift metronome. An animated line dance studio. Guides to every family in the Hornbostel-Sachs system — plus the answers to the music questions people actually ask.
🥁 HowManyBeats
Build a beat in the browser. 16-step sequencer, 10 tracks, multiple drum kits, swing, FX and WAV export. No account, no install — press play.
The Four Instrument Families
Every instrument in Western music sits in one of four families. Pick a family to dive into the full sub-hub.
Woodwind
Flute, oboe, clarinet, bassoon, saxophone, recorder — and the rule that puts a brass sax in this family.
Open hub →Strings
Violin, guitar, harp, mandolin, banjo, ukulele — bowed, plucked and struck, all one family.
Open hub →Brass
Trumpet, French horn, trombone, tuba, bugle — lip-buzz into a tube, that is the whole secret.
Open hub →Percussion
300+ percussion instruments worldwide — plus our free 16-step drum sequencer.
Open hub →Instrument Tuners
Live mic tuners with cents meters and reference tones — for six different string instruments.
Guitar Tuner
EADGBE, drop D, open G, DADGAD + alt tunings
Bass Tuner
4, 5 and 6-string bass configurations
Ukulele Tuner
GCEA and low-G with live mic detection
Violin Tuner
G-D-A-E with cents meter and reference tones
Banjo Tuner
Open G, Double C, D and G modal tunings
Mandolin Tuner
G-D-A-E in doubled courses
Chord Charts & Quick Facts
The numerical answers people search for most — kept short and sourced.
Guitar Chord Chart
The first 20 chords every beginner learns
Guitar Strings
6 standard + 4/5/7/8/12-string variants
Guitar Frets
Classical 19, acoustic 20, electric 21–24
Bass Strings
4, 5, 6 — and why bassists pick each
Piano Keys
88 keys — and the story behind that number
Notes in an Octave
12 — and why Western music sounds the way it does
Every "Types of [Instrument]" Guide
Twenty individual instrument-type guides across three families — including world variants, historic members and modern designs.
Woodwind
Strings
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Popular Music Questions
The "how many" questions people actually search for.
How Many Line Dances Are There?
177,000+ registered — but every one is just two numbers.
Counts in the Electric Slide
18 — but the original is 22, and the creator sued over it.
Counts in the Cupid Shuffle
32 counts, 4 walls — the song that calls its own steps.
How Many Piano Keys Are There?
88 keys — and the story behind that number.
How Many Guitar Strings Are There?
Standard 6 — plus 4, 5, 7, 8 and 12-string variants.
How Many Notes in an Octave?
12 notes — and why Western music is built that way.
How Many Operas Are There?
~40,000 written — the top 40 make up half of all performances worldwide.
How Many Operettas Are There?
A genre with an end date — it turned into the musical.
How Many Opera Characters Are There?
~300,000 roles — and Orpheus stars in hundreds of them.
How Many Instruments in an Orchestra?
70–100 musicians, ~30 instrument types in four families.
How Many Beatles Albums?
13 studio albums that reshaped popular music.
How Many Grammy Categories?
94 categories — most viewers see four of them.
Taylor Swift Grammys
14 Grammys, Album of the Year four times.
Eminem Albums
11 studio albums and counting.
Michael Jackson Studio Albums
Thriller alone sold 70–100 million copies.
How Many Members in BTS?
7 members — and a fandom that changed music.
Bob Dylan Songs
600+ songs — and a Nobel Prize for Literature.
Elvis Number One Hits
18 Billboard Hot 100 number ones.
For Younger Learners
Two simple junior apps for kids learning piano and colours.
Why music is mostly numbers
Press a note on a piano. The string vibrates 440 times a second if it is the A above middle C. Press the note an octave higher and the string vibrates exactly 880 times a second — twice as fast. Western music's entire pitch system is built on those frequency ratios, and they have been with us since Pythagoras worked out the maths in the 6th century BCE.
Counting is everywhere in music. 12 notes in an octave. 88 keys on a piano. 6 strings on a guitar. 60 string players in a typical symphony orchestra. 4 beats to a bar in common time. 18 counts in the Electric Slide — 22 if you ask its creator. 94 Grammy categories. 13 Beatles studio albums. 70–100 million copies of Michael Jackson's Thriller. Every one of those numbers is the answer to a real question someone has searched.
This hub collects the numerical answers — backed by sources, with a working drum machine, a dance studio and six free tuners along the way. Pick a tool, pick a guide, or just look something up.
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