diff --git a/main.go b/main.go
index 1a7d925..285fbce 100644
--- a/main.go
+++ b/main.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Jeremy Baxter.
+// entry point for records
+
 package main
 
 import (
diff --git a/musicindex/index.go b/musicindex/index.go
index 3c034c1..41d6809 100644
--- a/musicindex/index.go
+++ b/musicindex/index.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Jeremy Baxter.
+// Music library indexing code
+
 package musicindex
 
 import (
diff --git a/musicindex/musicindex.go b/musicindex/musicindex.go
index b70b0d3..b78d0ff 100644
--- a/musicindex/musicindex.go
+++ b/musicindex/musicindex.go
@@ -1,7 +1,5 @@
-// musicindex.go
-// Copyright (c) 2025 Jeremy Baxter.
-
-// Ephemeral music (artist, album, cover & track) index
+// Copyright (c) 2026 Jeremy Baxter.
+// In-memory album and song database
 
 package musicindex
 
diff --git a/server/pages.go b/server/pages.go
index 3d21cee..31090fb 100644
--- a/server/pages.go
+++ b/server/pages.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Jeremy Baxter.
+// HTML builders
+
 package server
 
 import (
diff --git a/server/server.go b/server/server.go
index ea8040d..3408f66 100644
--- a/server/server.go
+++ b/server/server.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Jeremy Baxter.
+// HTTP music server
+
 package server
 
 import (
diff --git a/util/util.go b/util/util.go
index 77149eb..25018c4 100644
--- a/util/util.go
+++ b/util/util.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Jeremy Baxter.
+// Reusable utility functions
+
 package util
 
 import (