MIT App Inventor Project

profilechown_chmod
lab11musicrecorder.pdf

!

In this app you will assemble a song note by note in a sequential List. The List will be read back and used to play selected notes for a specified period of time. The Clock.timer element is used to time each note. The list is stepped through until until a 0 placed after the last note spec is reached. The design at left uses a vertical.arrangement inside a horizontal arrangement as can be seen at left with the vertical indented further to the right under the horizontal.arrangement.

You should start by using completed lab 10 SAVE AS musicRecorder as Lab 11. In addition to all the blocks you already have from the lab 10 music box, you will need all the blocks shown. Pay close attention to the design layout in terms of the vertical and horizontal layoouts where one 2 big vertical frames hold the music box from lab 10 and all the elements of the recorder of lab 11. This way when you make on Vframe invisible, all the elements inside also becomes invisible.

design screen

!

app screen capture

! !