diff --git a/keycodes.txt b/keycodes.txt
new file mode 100644
index 0000000..777b190
--- /dev/null
+++ b/keycodes.txt
@@ -0,0 +1,16 @@
+U = unmodified, M = modified
+
+M 0-9 (asdhg yxcv)
+U 10 (^)
+M 11-17 (b qwerzt)
+U 18-23 (123465)
+U 24-26 (`97)
+M 27 (ß)
+U 28-30 (80+)
+M 31-35 (ouüip)
+U 36 (↵)
+M 37-41 (ljäkö)
+U 42 (#)
+M 43-47 (,-nm.)
+
+U ...
\ No newline at end of file