diff --git a/src/sfizz/FilePool.h b/src/sfizz/FilePool.h
index 9e238953..9d54fd6d 100644
--- a/src/sfizz/FilePool.h
+++ b/src/sfizz/FilePool.h
@@ -134,14 +134,57 @@ public:
      *
      */
     void clear();
-
+    /**
+     * @brief Moves the filled promises to a linear storage, and checks
+     * said linear storage for promises that are not used anymore.
+     *
+     * This function has to be called on the audio thread.
+     */
     void cleanupPromises() noexcept;
+    /**
+     * @brief Get a file promise
+     *
+     * @param filename the file to preload
+     * @return FilePromisePtr a file promise
+     */
     FilePromisePtr getFilePromise(const std::string& filename) noexcept;
+    /**
+     * @brief Change the preloading size. This will trigger a full
+     * reload of all samples, so don't call it on the audio thread.
+     *
+     * @param preloadSize
+     */
     void setPreloadSize(uint32_t preloadSize) noexcept;
+    /**
+     * @brief Get the current preload size.
+     *
+     * @return uint32_t
+     */
     uint32_t getPreloadSize() const noexcept;
+    /**
+     * @brief Set the oversampling factor. This will trigger a full
+     * reload of all samples so don't call it on the audio thread.
+     *
+     * @param factor
+     */
     void setOversamplingFactor(Oversampling factor) noexcept;
+    /**
+     * @brief Get the current oversampling factor
+     *
+     * @return Oversampling
+     */
     Oversampling getOversamplingFactor() const noexcept;
+    /**
+     * @brief Empty the file loading queues without actually loading
+     * the files. All promises will be unfulfilled. Don't call this
+     * method on the audio thread as it will spinlock.
+     *
+     */
     void emptyFileLoadingQueues() noexcept;
+    /**
+     * @brief Wait for the background loading to finish for all promises
+     * in the queue.
+     */
     void waitForBackgroundLoading() noexcept;
 private:
     fs::path rootDirectory;
diff --git a/src/sfizz/Synth.cpp b/src/sfizz/Synth.cpp
index 3ad7a76c..c579ff31 100644
--- a/src/sfizz/Synth.cpp
+++ b/src/sfizz/Synth.cpp
@@ -576,8 +576,8 @@ uint32_t sfz::Synth::getPreloadSize() const noexcept
 void sfz::Synth::enableFreeWheeling() noexcept
 {
     if (!freeWheeling) {
-    freeWheeling = true;
-    DBG("Enabling freewheeling");
+        freeWheeling = true;
+        DBG("Enabling freewheeling");
     }
 }
 void sfz::Synth::disableFreeWheeling() noexcept
diff --git a/src/sfizz/Synth.h b/src/sfizz/Synth.h
index 99da4fac..70397b2d 100644
--- a/src/sfizz/Synth.h
+++ b/src/sfizz/Synth.h
@@ -189,8 +189,8 @@ public:
     /**
      * @brief Send a note on event to the synth
      *
-     * @param delay the delay at which the event occurs; this should be lower than the size of
-     *              the block in the next call to renderBlock().
+     * @param delay the delay at which the event occurs; this should be lower
+     *              than the size of the block in the next call to renderBlock().
      * @param channel the midi channel for the event
      * @param noteNumber the midi note number
      * @param velocity the midi note velocity
@@ -199,8 +199,8 @@ public:
     /**
      * @brief Send a note off event to the synth
      *
-     * @param delay the delay at which the event occurs; this should be lower than the size of
-     *              the block in the next call to renderBlock().
+     * @param delay the delay at which the event occurs; this should be lower
+     *              than the size of the block in the next call to renderBlock().
      * @param channel the midi channel for the event
      * @param noteNumber the midi note number
      * @param velocity the midi note velocity
@@ -219,8 +219,9 @@ public:
     /**
      * @brief Send a pitch bend event to the synth
      *
-     * @param delay the delay at which the event occurs; this should be lower than the size of
-     *              the block in the next call to renderBlock().
+     * @param delay the delay at which the event occurs; this should be lower
+     *              than the size of the block in the next call to
+     *              renderBlock().
      * @param channel the midi channel for the event
      * @param pitch the pitch value
      */
@@ -244,12 +245,14 @@ public:
      */
     void tempo(int delay, float secondsPerQuarter) noexcept;
     /**
-     * @brief Render an block of audio data in the buffer. This call will reset the synth
-     * in its waiting state for the next batch of events. The size of the block is integrated
-     * in the AudioSpan object. You can build an AudioSpan implicitely from a large number
-     * of source objects; check the AudioSpan reference for more precision.
+     * @brief Render an block of audio data in the buffer. This call will reset
+     * the synth in its waiting state for the next batch of events. The size of
+     * the block is integrated in the AudioSpan object. You can build an
+     * AudioSpan implicitely from a large number of source objects; check the
+     * AudioSpan reference for more precision.
      *
-     * @param buffer the buffer to write the next block into; this should be a stereo buffer.
+     * @param buffer the buffer to write the next block into; this should be a
+     * stereo buffer.
      */
     void renderBlock(AudioSpan<float> buffer) noexcept;
 
@@ -325,7 +328,18 @@ public:
      */
     int getAllocatedBytes() const noexcept { return Buffer<float>::counter().getTotalBytes(); }
 
+    /**
+     * @brief Enable freewheeling on the synth. This will wait for background
+     * loaded files to finish loading before each render callback to ensure that
+     * there will be no dropouts.
+     *
+     */
     void enableFreeWheeling() noexcept;
+    /**
+     * @brief Disable freewheeling on the synth. You should disable freewheeling
+     * before live use of the plugin otherwise the audio thread will lock.
+     *
+     */
     void disableFreeWheeling() noexcept;
 protected:
     /**