挑几张最关键的界面
直接说明你能怎么练
Key screens that show
how the app supports practice
这里直接用当前产品截图来说明功能，只保留最能解释练习流程的几张：素材库、快捷转调、analysis 速查、内建 metronome，以及包含 tuner 的 widgets 模块。
This section now uses the current product screenshots and keeps only the ones that explain the practice flow best: the library, quick transposition, fast analysis lookup, the built-in metronome, and widget modules including the tuner.
和弦、音阶、Licks 集中在一个入口
One Home for Chords, Scales, and Licks
Library 页把核心素材、survey / issue 入口，以及 favorites / daily practice 播放列表整理在一起，开始练习前不需要在多个页面之间来回找。
The library screen keeps core materials, survey and issue actions, plus favorites and daily practice playlists in one place so starting a session takes fewer taps.
快捷转调，直接适配不同乐器
Quick Transposition for Different Instruments
默认转调可以直接切到 Concert、Bb、Eb、F 等常见乐器体系，练同一条 ii-V 或和弦材料时，不需要自己手动重新换算。
Default transposition can switch straight to Concert, Bb, Eb, F, and other common instrument setups, so you do not have to recalculate every ii-V or chord idea yourself.
Licks Analysis 速查更直接
Fast Licks Analysis at a Glance
在一个页面里同时看到乐谱、和弦分析、兼容音阶和播放控制，查一句乐句该怎么理解、该配什么材料，会比在不同工具里来回切换快很多。
The app places notation, chord analysis, compatible scales, and playback controls on one screen, making lick breakdowns much faster than switching between separate tools.
Built-in Metronome
Built-in Metronome
拍号、BPM 和 tap 输入都在应用里完成，开始练节奏时不需要再切出去找别的 metronome，工作流会顺很多。
Meter selection, BPM control, and tap input all stay inside the app, so rhythm practice starts without switching out to a separate metronome.
Widgets 模块里集成 tuner 和更多练习工具
Widget Modules Bundle the Tuner and More
Practice Widgets 把 Lick Training、Metronome、Tuner、Aural Skills 放在一个模块入口里，适合后续继续扩展 extra 持续更新的练习内容。
Practice Widgets groups Lick Training, Metronome, Tuner, and Aural Skills in one module area, which also makes the extra training surface easy to expand over time.
Favorites 和 Playlist 帮你沉淀常练内容
Favorites and Playlists Keep Practice Organized
把常练和弦、音阶、乐句收进自己的 favorites 和 playlist，回到练习时可以直接续上，不需要每次重新检索和整理。
Save chords, scales, and licks into favorites and playlists so recurring practice can resume quickly without rebuilding the list every time.
