diff --git a/README.md b/README.md
index 309dd10..8ee963b 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,51 @@
 # Tiny Music app
 
-This is an app to easily create backing tracks to play along to certain chords.
+This is an app to play live backing tracks to play along to.
 
-Features:
+## Building and installation
 
-- Enter an arbitrary chord progression
-- Synthesize sounds on the go
-- Preview which chords will be played soon
-- Use effects on instruments
+This is a gradle android project written in kotlin. You will need to install Android studio and 
+setup your build environment. Then, you can install the app on your phone.
 
-Gplv3+ Licensed
\ No newline at end of file
+## APK build: TODO
+
+## Usage
+
+Important note: To hear anything, make sure you have started the song on the play tab,
+added at least one instrument which plays at least one note per measure and isn't muted
+and have at least one line inserted into your song.
+
+### The play view
+
+This is the default view. Here, you can start or stop playing.
+
+#### Beat indicator
+
+![](images/play/beat.png)
+
+This shows you which beat is currently played.
+
+#### Volume and speed controls
+
+![](images/play/volume-tempo.png)
+
+Adjust your volume between 0% and 100%. This will apply to all instruments.
+
+The tempo is adjusted in beats per minute (BPM).
+
+#### Chord preview
+
+![](images/play/chords.png)
+
+Here, you can see which chords will be played next. Underneath the current line, you can also see
+a preview of the first chord in the next line to be prepared.
+
+#### Song navigation
+
+![](images/play/navigation.png)
+
+For all song navigation, the song will not change its current beat. This means that if you 
+
+Use the simple fast-forward buttons to skip to the next measure and advance to the next chord.
+
+The skip-to end and beginning buttons will skip to the next or previous line of chords.
\ No newline at end of file