Why為什麼
Every other metronome makes you stop to change a setting. 別的節拍器，都要你先按停止才能改設定。
Setting up a piece isn't data entry. It's listen, adjust, listen again. So in Attacca the beat never stops while you work: nudge the tempo, switch to 5/8, move an accent — the click keeps running and your change lands at the next bar. 編一首曲子不是填表格，而是「聽 → 調整 → 再聽」。所以在 Attacca 裡，編輯的時候拍子一次都不會停：調速度、換成 5/8、移動重音——拍子持續響著，你的修改會在下一小節生效。
The song library is pretty much unusable as it is impossible to edit saved tracks… if you need to change anything then you have to delete it and start from scratch.
The song library is pretty much unusable as it is impossible to edit saved tracks… if you need to change anything then you have to delete it and start from scratch.
— a real review of a popular metronome app. Attacca is the answer to it.— 某熱門節拍器 App 的真實評論。Attacca 就是為了解決這件事。
Features功能
The authoring loop邊聽邊改
Change the tempo. Mid-bar. It's still playing. 拍子還響著，就能改速度。
Edits are scheduled, not applied mid-beat: the change lands cleanly on the next barline, so you hear the new tempo in context instead of from a cold start. 修改會排進下一個小節線才生效，不會在一拍中間硬切。你聽到的是新速度放回曲子裡的樣子，而不是從頭重新開始。
Any meter, any feel任何拍號，任何分法
7/8 as 2+2+3. Or 3+2+2. 7/8 要分成 2+2+3 還是 3+2+2？
Every beat in the bar can be strong, medium, weak or silent — so the grouping is whatever the score means, not whatever the app assumed. Tap a beat to cycle it. Try it here. 每一拍都能設成強／中／弱／無聲，分法照譜上寫的走，而不是 App 自己猜。點一下就能切換那一拍——這裡就能試。
7/8
A library, not a save slot曲庫，不是存檔格
Rename it. Duplicate it. Change it in rehearsal. 命名、複製、排練中直接改。
A piece is a list of sections, each with its own time signature, tempo, bar count and name. Duplicate one as the basis for the next. Change it in the middle of rehearsal without starting over. 一首曲子就是一串段落，每段有自己的拍號、速度、小節數和名稱。複製一首當作下一首的起點，排練中途直接修改，不必重來。
Works anywhere哪裡都能用
Silent mode: flash and haptics. Fully offline. 靜音模式：閃光＋震動，完全離線。
No account, no network. For the pit, the booth, or a 6am practice room. And the dial is built for hands that are holding an instrument — land on 138 the first time. 不需註冊、不需網路。樂池裡、錄音間裡、清晨的琴房裡都能用。轉盤為正在拿樂器的手設計，一次就轉到 138。
Who it's for給誰用
Anyone whose next rehearsal has a meter change in it. 給下一次排練會遇到變拍的每一個人。
Pit & musical theatre音樂劇與樂池
4/4 → 6/8 → rit.A number is a dozen sections. Program the show once, then fix a tempo in the break without rebuilding it.一首歌就是十幾段。整齣戲編好一次，中場休息時直接修速度，不必重做。
Wind ensemble & orchestra管樂團與管弦樂團
5/8 · 3/2 · 𝄐Contemporary repertoire changes meter every few bars. Fermatas hold until you tap.現代曲目每幾小節就換一次拍號。延長記號等你點一下才放開。
Worship teams & drummers敬拜團與鼓手
72 → 76 → 80A set is a piece: each song a section, each tempo its own. Silent mode keeps the click off the mains.一份歌單就是一首曲子：每首歌一段、各自的速度。靜音模式讓拍子不會進主喇叭。
Music-class students音樂班學生
7/8 = 2+2+3Hear the grouping before you play it. Set the accents to match the part your teacher marked.先聽清楚分法再開始練。照老師在譜上標的，把重音設好。
Teachers老師
1 piece → 12 copies1 首 → 12 份Duplicate a piece and slow it down for each student, instead of reprogramming it from zero.複製一首，替每個學生各自放慢，不必從零開始重編。
Soloists & accompanists獨奏與伴奏
a tempoRun the whole movement, tempo changes and all, so the practice room sounds like the stage.整個樂章連同速度變化一次走完，讓琴房聽起來就像舞台。
Price價格
- No subscription沒有訂閱制
- No per-feature unlocks沒有單項解鎖
- No ads沒有廣告
- No paywall on subdivisions細分拍不另外收費
- All your iPhones and iPads所有 iPhone 和 iPad 都能用
- 14-day free trial14 天免費試用
One price, everything unlocked. Final pricing is confirmed at launch. 一次付費，全部解鎖。正式價格以上架時為準。