diff --git a/.index b/.index
index ae83ae4..4ac7696 100644
--- a/.index
+++ b/.index
@@ -16,3 +16,4 @@ Drupal Snippets.md
 
 Olivero Sub-theme commands.md
 add_these_to_current_sites.md
+audio_mastering_ai.pdf
diff --git a/audio_mastering_ai.pdf b/audio_mastering_ai.pdf
new file mode 100644
index 0000000..20e495f
Binary files /dev/null and b/audio_mastering_ai.pdf differ