diff --git a/docs/AUTHORS.txt b/docs/AUTHORS.txt
index 26d8c72ca..0da74f955 100644
--- a/docs/AUTHORS.txt
+++ b/docs/AUTHORS.txt
@@ -263,6 +263,11 @@ June 17, 2002 - October 7, 2024
Creative Commons CC0 1.0 Universal by Justin Robert
+ "Concentric Square" sound effect: "ride rythym.wav"
+
+ Creative Commons Attribution 3.0 (CC BY 3.0) by "THE_bizniss"
+
+
Bloom magic tool
by Bill Kendrick
diff --git a/docs/CHANGES.txt b/docs/CHANGES.txt
index b314370f7..b0476ba73 100644
--- a/docs/CHANGES.txt
+++ b/docs/CHANGES.txt
@@ -85,13 +85,16 @@ https://tuxpaint.org/
+ Closes https://sourceforge.net/p/tuxpaint/feature-requests/261/
- * WIP "Concentric Circle" and "Concentric Square": Draw concentric shapes.
+ * "Concentric Circle" and "Concentric Square": Draw concentric shapes.
+ Code by Bill Kendrick
- + "Concentric Square" sound effected based on "Brush_Baião12.wav"
+ + "Concentric Square" sound effect based on "Brush_Baião12.wav"
Creative Commons CC0 1.0 Universal by Justin Robert
- + TODO Sound "Concentric Circle" effects
+ + "Concentric Square" sound effect: "ride rythym.wav"
+
+ Creative Commons Attribution 3.0 (CC BY 3.0) by "THE_bizniss"
+
* Magic Tool Improvements:
------------------------
diff --git a/magic/sounds/concentric-circle.ogg b/magic/sounds/concentric-circle.ogg
new file mode 100644
index 000000000..4cb9ae39f
Binary files /dev/null and b/magic/sounds/concentric-circle.ogg differ
diff --git a/magic/src/spiral.c b/magic/src/spiral.c
index e599db28d..f13e323f6 100644
--- a/magic/src/spiral.c
+++ b/magic/src/spiral.c
@@ -58,7 +58,7 @@ const char * spiral_descrs[NUM_TOOLS] = {
const char * spiral_sounds[NUM_TOOLS] = {
"spiral-circle.ogg",
"spiral-square.ogg",
- "spiral-circle.ogg", // FIXME
+ "concentric-circle.ogg",
"concentric-square.ogg",
};