diff --git a/sdl2-hyper-sonic-drivers/src/HyperSonicDrivers/drivers/MIDDriver.hpp b/sdl2-hyper-sonic-drivers/src/HyperSonicDrivers/drivers/MIDDriver.hpp
index 5cff599a..89a47314 100644
--- a/sdl2-hyper-sonic-drivers/src/HyperSonicDrivers/drivers/MIDDriver.hpp
+++ b/sdl2-hyper-sonic-drivers/src/HyperSonicDrivers/drivers/MIDDriver.hpp
@@ -56,8 +56,6 @@ namespace HyperSonicDrivers::drivers
         inline void setTempo(const uint32_t tempo) noexcept { m_midiTempoChanged = true; m_tempo = tempo; }
         bool open_() noexcept;
     private:
-        // this is used to "lock" the device to a specific driver output and passed to IMidiDriver
-        //std::shared_ptr<devices::IDevice> m_device;
         // this is to abstract the specific midi driver implementation
         std::unique_ptr<drivers::midi::IMidiDriver> m_midiDriver;
         std::shared_ptr<audio::MIDI> m_midi;
diff --git a/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/CMakeLists.txt b/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/CMakeLists.txt
index 0a286685..bfea9ca4 100644
--- a/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/CMakeLists.txt
+++ b/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/CMakeLists.txt
@@ -170,6 +170,13 @@ macro_test(
         "../fixtures/midifile_sample.mid"
 )
 
+macro_test(
+    EXE TestIMusicDriver
+    FILES "drivers/TestIMusicDriver.cpp"
+    LINKS_PRIVATE hyper-sonic-drivers-static
+    FIXTURES 
+)
+
 macro_test(
     EXE TestMameOPL2
     FILES "hardware/opl/scummvm/mame/TestMameOPL2.cpp"
diff --git a/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/drivers/TestIMusicDriver.cpp b/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/drivers/TestIMusicDriver.cpp
new file mode 100644
index 00000000..4993e965
--- /dev/null
+++ b/sdl2-hyper-sonic-drivers/test/HyperSonicDrivers/drivers/TestIMusicDriver.cpp
@@ -0,0 +1,26 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock.h>
+#include <HyperSonicDrivers/drivers/IMusicDriver.hpp>
+
+namespace HyperSonicDrivers::drivers
+{
+    class IMusicDriverMock : public IMusicDriver
+    {
+    public:
+        IMusicDriverMock(const std::shared_ptr<devices::IDevice>& device) : IMusicDriver(device) {}
+        void play(const uint8_t track) noexcept override {};
+        void stop() noexcept override {};
+        bool isPlaying() const noexcept override { return false; };
+    };
+
+    TEST(IMusicDriver, cstor_nullptr)
+    {
+        EXPECT_THROW(IMusicDriverMock md(nullptr), std::runtime_error);
+    }
+}
+
+int main(int argc, char** argv)
+{
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}