TriadsPro Lite vs Key Changer

TriadsPro Lite is the free introduction to the TriadsPro system — designed to help guitarists understand and visualize triads, inversions, and chord movement on the fretboard without overwhelm. Whether you’re new to triads or looking for a clearer way to connect theory to real playing, TriadsPro Lite gives you hands-on tools to start learning immediately. What You Can Do with TriadsPro Lite • Visualize Guitar Triads Instantly Pick a key and see major and minor triads on an interactive fretboard. Learn where triads live instead of memorizing isolated shapes. • Understand Triad Inversions Explore how triads move across the neck using simple, repeatable positions that build real fretboard awareness. • Learn Through Play Test your knowledge with a fun triad identification game designed to build recognition and muscle memory. • Clean, Focused Learning Experience No clutter, no ads during practice, and no internet required once installed. Upgrade When You’re Ready TriadsPro Lite includes a limited set of features. Unlocking TriadsPro Pro gives you full access to: • All triads and inversions in every key • Nashville Number System chord progressions • Movable triad voicings and advanced patterns • Backing tracks and song-based practice tools • Expanded learning modes and exercises Upgrade is a one-time purchase — no subscriptions. Perfect For Guitarists Who Want To: • Learn guitar triads clearly • Understand triad inversions • Improve chord movement and voice leading • Play more confidently in worship, pop, rock, or jazz settings Works on iPhone and iPad iOS 16 or later required © 2025 TriadsPro. All rights reserved.

Key Changer helps musicians make music fit their voice, instrument, and group. Find a song's key, transpose audio recordings, and transpose chord charts into the key you need. AUDIO FILE TRANSPOSITION • Import an audio recording and detect its musical key • Choose a new key and transpose the recording • Preview the transposed result before exporting • Share your new version in M4A or WAV format LIVE AUDIO DETECTION • Use your iPhone microphone to listen to music playing nearby • Capture a 12-second sample to estimate a song's key and tempo • Helpful for rehearsals, live performances, and learning songs by ear CHORD SCANNER • Choose a current key and target key for a chord chart • Point your camera at a chord sheet to see transposed chord labels as you scan • Capture a snapshot, or import a PDF or image of a chord chart • Review and share a transposed chart for practice, rehearsal, or performance Key Changer is made for vocalists finding a comfortable range, worship leaders preparing charts for their teams, bands adapting songs for live performance, music students, and anyone learning by ear. All audio analysis and chord recognition happen on your device. No account or subscription is required. Clear audio and easy-to-read chord charts provide the best results; automatic key and tempo results are helpful estimates, so trust your ears too.