键盘移调器 vs EasyChord

SUBSCRIPTION REQUIRED: Transposer is a free download, but an auto-renewable Transposer Pro subscription (In-App Purchase) is required to access the app’s features. A free trial may be available. Subscription length and price are shown in the app and on the App Store purchase sheet before you confirm. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Transposer is a MIDI transpose utility for electronic keyboards. Connect a compatible keyboard via USB, choose your instrument profile, and reach your target key in one tap. Features unlocked with Transposer Pro (In-App Purchase): • One-tap transpose control for live performance • Support for many popular keyboard models • Multiple device connection • Custom presets for songs and keys • Background MIDI while the screen is locked Privacy Policy: https://briancaoyu.github.io/Transposer/privacy.html Terms of Use (EULA): https://briancaoyu.github.io/Transposer/terms.html

和弦速记帮你在选定调性里认出和弦，并在键盘上弹出组成音。打开就能练。选大调或小调，选和弦范围，题目出来后听一遍，再在屏幕钢琴或外接 MIDI 键盘上弹出正确的音。答对自动下一题，连对会记下来。 判定可以只核对音名（任意转位），也可以要求原位、最低音必须是根音。打开「用级数显示」后，题目变成 1maj、2min、57，不再显示 C、Dm、G，适合练级数思维。需要时可以听和弦、看指法提示。 支持有线或蓝牙 MIDI 键盘。练习设置只保存在本机，不必注册，没有广告。 适用于 iPhone、iPad 和 Mac。