Video : https://youtube.com/watch?v=30vphKxnw6o
Online Key and BPM Finder Plus BPM & Key Change Key & BPM Finder and Changer Step 1: Select a File Choose a File Acceptable formats: mp3, .wav, m4a, wma, flac (60 Mb or smaller) Step 2: Key/BPM Results Step 3: Adjust Step 4: ...