Description

bulkbpm. analyzes audio files and renames them with musical metadata embedded in the filename. Point it at a folder of samples, and it will detect the key, relative key, BPM, and content type of each file.

Before: funky_groove_01.wav

After: funky_groove_01_G_Em_124_🟢.wav

Features

Key Detection – Detects the musical key using harmonic analysis (Essentia.js)

Relative Key – Shows the relative major/minor for quick harmonic matching

BPM Detection – Accurate tempo detection with intelligent range correction

Content Type – Classifies samples as drums (🥁), melodic (🎹), or full composition (🟢)

Batch Processing – Process entire folders at once

Non-destructive – Creates renamed copies in a new output folder

Skip Existing – Already processed files are skipped, so you can re-run after adding new samples

Progress Tracking – Real-time progress with ETA for large batches

Supported Formats

WAV, AIF, AIFF, FLAC, MP3, M4A, OGG, AAC

How to Use

Drop the device on any track

Select your input folder (source samples)

Select your output folder (where renamed copies go)

Click Process

Watch progress as files are analyzed and renamed

Requirements

Ableton Live 10, 11, 12 with Max for Live

macOS (Intel or Apple Silicon) or Windows

Node.js dependencies included

Use Cases

Organize messy sample libraries

Prep samples for DJ sets (key matching)

Catalog sample packs after purchase

Find harmonically compatible loops quickly