Add libfluidsynth from source

Dockerfile

@@ -5,7 +5,19 @@ WORKDIR /code
 COPY ./requirements.txt /code/requirements.txt
 
 RUN apt-get update -qq && \
-    apt-get install -qq python3-pip libfluidsynth build-essential libasound2-dev libjack-dev
+    apt-get install -qq python3-pip build-essential libasound2-dev libjack-dev wget cmake
+
+# Download libfluidsynth source
+RUN wget https://github.com/FluidSynth/fluidsynth/archive/refs/tags/v2.3.3.tar.gz && \
+    tar xzf v2.3.3.tar.gz && \
+    cd fluidsynth-2.3.3 && \
+    mkdir build && \
+    cd build && \
+    cmake .. && \
+    make && \
+    make install && \
+    cd ../../ && \
+    rm -rf fluidsynth-2.3.3 v2.3.3.tar.gz
 
 RUN pip3 install --no-cache-dir --upgrade -r /code/requirements.txt