用 Google Docs 畫五線譜教學

用 Google Docs 畫五線譜教學！音樂課老師學生必備

https://www.playpcesor.com/2015/11/google-docs-VexTab-Music-Notation.html

免費琴鍵圖檔分割工具

https://briian.com/41204/

https://imagesplitter.net/

樂器～免費音效

樂器～免費音效
http://taira-komori.jpn.org/instrument01tw.html

除了Appinventor另一個選擇-->Thunkable

Thunkable.com: Drag and Drop Mobile App Builder for iOS and Android

https://thunkable.com

如何讓Google Chrome瀏覽器執行APK?

Google launched a tool called ARC Welder
https://chrome.google.com/webstore/detail/arc-welder/emfinbmielocnlhgmfkkmkngdoccbadn