diff --git a/.gitmodules b/.gitmodules
index e6825dc..b0ca30c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -418,3 +418,6 @@
 [submodule "libraries/drivers/segment_display"]
 	path = libraries/drivers/segment_display
 	url = https://github.com/bablokb/circuitpython-segment-display.git
+[submodule "libraries/helpers/wavebuilder"]
+	path = libraries/helpers/wavebuilder
+	url = https://github.com/CedarGroveStudios/CircuitPython_WaveBuilder.git
diff --git a/circuitpython_community_library_list.md b/circuitpython_community_library_list.md
index 1c1e66c..814a9e7 100644
--- a/circuitpython_community_library_list.md
+++ b/circuitpython_community_library_list.md
@@ -131,6 +131,7 @@ Here is a listing of current CircuitPython Community Libraries. These libraries
 * [CircuitPython_TouchCalibrator](https://github.com/CedarGroveStudios/CircuitPython_TouchCalibrator.git) A resistive touchscreen calibrator for Adafruit built-in and TFT FeatherWing displays
 * [CircuitPython TZDB](https://github.com/evindunn/circuitpython_tzdb) IANA timezones for adafruit_datetime ([PyPi](https://pypi.org/project/circuitpython-tzdb/)) \([Docs](https://circuitpython-tzdb.readthedocs.io/en/latest/))
 * [CircuitPython uplot](https://github.com/jposada202020/CircuitPython_uplot) Plot library for CircuitPython ([PyPi](https://pypi.org/project/circuitpython-uplot/)) \([Docs](https://circuitpython-uplot.readthedocs.io/en/latest/))
+* [CircuitPython_WaveBuilder](https://github.com/CedarGroveStudios/CircuitPython_WaveBuilder.git) A CircuitPython class to construct a composite synthio wave table from a collection of oscillators. \([Docs](https://github.com/CedarGroveStudios/CircuitPython_WaveBuilder/blob/main/media/pseudo_rtd_cedargrove_wavebuilder.pdf))
 * [Gamblor21 CircuitPython AHRS](https://github.com/gamblor21/Gamblor21_CircuitPython_AHRS.git) This library contains right now one algorithm for AHRS - Attitude and Heading Reference System \([Docs](https://circuitpython-ahrs.readthedocs.io/))
 * [Jepler CircuitPython udecimal](https://github.com/jepler/Jepler_CircuitPython_udecimal.git) Reduced version of the decimal library for CircuitPython ([PyPi](https://pypi.org/project/jepler-circuitpython-udecimal)) \([Docs](https://jepler-udecimal.readthedocs.io/en/latest/))
 * [PiperBlocklyLibrary](https://github.com/buildwithpiper/PiperBlocklyLibrary.git) CircuitPython Library to support block-coding using the RP Pico microcontroller
diff --git a/libraries/helpers/rangeslicer b/libraries/helpers/rangeslicer
index 80e11ab..b1a4aca 160000
--- a/libraries/helpers/rangeslicer
+++ b/libraries/helpers/rangeslicer
@@ -1 +1 @@
-Subproject commit 80e11ab8497286a3c48c667174663803de4fff65
+Subproject commit b1a4aca4da34318a6a9c5c43146e17ded6f852fd
diff --git a/libraries/helpers/wavebuilder b/libraries/helpers/wavebuilder
new file mode 160000
index 0000000..2b7e871
--- /dev/null
+++ b/libraries/helpers/wavebuilder
@@ -0,0 +1 @@
+Subproject commit 2b7e871e997abac2a7555cd6c5fce42d433a2e83