UD5 Toolkit
Custom Metronome Accent Pattern Builder – Online Odd Time Signatures
Create a custom click pattern with accents for 5/4, 7/8, or any complex meter. Visual and audio feedback.
Musician Utilities & Tuner
21+ toolsDidgeridoo Backpressure Guide – Online Bell Diameter & Length Check
Enter didgeridoo dimensions to understand its acoustic backpressure. Helps choose or design a comfortable instrument.
Pan Flute Pipe Length Calculator – Online Note & Diameter to cm
Calculate the tube length for each note of a pan flute given inner diameter. Build your own instrument.
Bagpipe Practice Chanter Logger – Online Tune & Tempo Tracker
Log practice sessions, note the tunes played, metronome BPM, and duration. Monitor progress on the pipes.
Ukulele Strap Button Placement – Online Heel Position Finder
Find the correct spot to drill for a heel strap button. Interactive visual guide with measurements.
Guitar Pick Thickness Guide – Online Style & String Gauge Match
Select playing style (rhythm, lead, strumming) and string gauge to get the recommended pick thickness in mm.
Harmonica Key Transposer – Online Find Correct Harp for Song
Enter the song's key and playing position (straight/cross harp) to determine which harmonica key to use.
Drumstick Balance Calculator – Online Tip & Taper Preference
Compare stick models by length, diameter, and taper. Find the perfect balance for your playing style.
Djembe Rope Tension Calculator – Online Knots & Length
Estimate how much rope you need to restring a djembe and the number of verticals. Get traditional Mali weave instructions.
Musical Interval Ear Trainer – Online Minor 2nd to Octave
Listen to two notes and identify the interval. Purely local Web Audio synthesis. Sharpen your relative pitch.
Guitar Capo Transposer – Online Fret Chord Change Chart
Select original key and capo position to see the resulting chord shapes. Keep playing in the original key without barre chords.
Flute Fingering Chart Interactive – Online Note to Keys Visual
Click a note on the staff and see a visual diagram of the flute keys to press. Supports common alternate fingerings.
Ukulele String Tension Calculator – Online Note & Gauge Balance
Select tuning, scale length, and string gauge to calculate total tension on the neck. Build custom string sets.
Tap Tempo BPM Detector - Online Find Beats Per Minute
Tap any key to measure beats per minute. Displays average BPM and beat interval in milliseconds. Essential for DJs and music production. No extra permissions.
Chord Progression Builder - Online Music Theory Tool
Select a key and build chord progressions (I-IV-V, etc.). Hear them played with simple piano sounds. Great for songwriting inspiration. Local audio synthesis.
Online Guitar Tuner - Browser Microphone Pitch Detection
Tune your guitar using the browser microphone. Detects pitch and shows deviation from standard tuning. No installation, pure client-side audio processing.
Setlist Builder – Online Drag Songs into Order & Time
Drag songs into a setlist and see total duration. Perfect for planning a concert or DJ set.
Drum Shell Fundamental Note Calculator – Online Bearing Edge
Enter drum diameter, depth, and material to find the shell's approximate fundamental note. For tuning reference.
Recorder Fingering Chart – Online Baroque & German System
Interactive soprano recorder chart showing which holes to cover for each note. Switch between baroque and German fingering.
Online Metronome with Subdivisions - Precise Rhythm Trainer
Play a metronome with adjustable BPM, time signature, and subdivisions (eighth, triplet, sixteenth). Tap tempo and visual flash. Works offline for practice.
Trumpet Mouthpiece Comparator – Online Cup, Throat, Backbore
Compare mouthpiece specifications side‑by‑side. See how changes affect tone and range. Educational for brass players.