Lens in Note

Change your song's original key (pitch) and tempo (speed) with just your fingertips. "This song's too high to sing." "I want to lower the key before I practice." "I want to slow it down to learn the part by ear." Lens in Note is built for moments like these. WHAT YOU CAN DO ■ Adjust key & tempo ・Fine-tune pitch by up to ±5 semitones and tempo from -50% to +100% ・Intuitive control — just drag the XY pad with your finger ・Hear every change live as you adjust it ■ Flick to compare original vs. key-changed ・Flick the card sideways to instantly A/B the original key/tempo against your own settings ■ Import your songs ・Extract just the audio track from videos in your camera roll or files ・Great for turning screen-recorded live performances into practice tracks ■ Playlists ・Group your favorite songs into playlists ・Reorder tracks easily by dragging ■ Background playback ・Keeps playing while you use other apps ・Play/pause and skip tracks right from the notification ■ Download ・Export your key/tempo-adjusted song as an audio file to keep WHO IT'S FOR ・Singers checking their comfortable vocal range for karaoke ・Musicians slowing a track down to learn a part by ear ・Anyone looking for the right key to sing or play along in PLANS ・Free: up to 5 songs in your library, full feature access ・Paid (¥160/month): unlimited songs, plus the ability to create playlists No account or sign-in required. All your songs and playlists are stored locally on your device only — nothing is ever sent anywhere else.