Chord ai vs Violin2Notes

Chord ai is a mobile app that recognizes chords and beats in songs, helping listeners follow music or learn to play it. Songs can be loaded from YouTube, SoundCloud, audio files, or a device microphone. The app detects chords, tracks beats and downbeats, displays tempo and song structure, and infers a song's key; it also shows guitar, piano, and ukulele chord diagrams. Microphone input can identify chords in real time. The maker describes on-device deep learning, with audio files and microphone input analyzed on the phone. The free plan provides basic features with unlimited free use. Chord ai Pro adds recognition of more than 700 chords, voicing and position suggestions, unlimited saved songs, PDF transcription export, score editing, and WAV export of bass, drums, vocals, and other stems. Other Pro tools include pitch shifting, alternate tunings, smart capo suggestions, and processing audio or video up to one hour at once. Pro costs $9 a month or $69 a year, with prices depending on App Store country. The app is available on Android and iOS, and the maker does not provide API access to its technology.

Violin2Notes uses AI to turn recordings of violin, viola, cello, and double bass into editable scores and music files. It can work with string parts even when other instruments are present. Users can upload audio, paste a YouTube link, or record in the app; supported upload formats include MP3, WAV, MP4, MIDI, and FLAC. An editor lets users adjust notes, timing, and layout before exporting PDF sheet music, quantized or unquantized MIDI, or MusicXML. Piano Roll mode provides a visual way to view and play along with a transcription. Free demos can be repeated, but each covers only the first 20 seconds of audio, a video, or an in-app recording and provides a PDF preview. Pro includes 50 full transcriptions per month, each up to 15 minutes. It costs $14.99 a month, or $6.24 a year with annual billing, shown as an equivalent monthly cost. The service is available on web, iOS, and Android, and the maker says transcriptions sync across those platforms. The maker says clear recordings focused on strings produce the best results; corrections can be made in the editor.