Using Alda with Python

alda-python.md

1. Download and install Alda per the Install instructions
2. Run the Alda REPL as a server:

   $ alda repl --server --port 12345
   

3. In a different terminal, run an interactive Python session (e.g. IPython)
4. Install an nREPL client such as nrepl-python-client (a bit dated but does the job)

   !pip install --user nrepl-python-client
   

5. Create some Alda code, for example:

   code = """ 
       (tempo! 90) 
       piano:  
           o3 c1/e/g/b | f2/a/>c/e ~ <e2/g/b/>d 
       violin: 
           o2 c1 ~ | f2 ~ g2 
       percussion: 
           o2 [c8 r8 c8 r8 e8 c8 r8 c8] * 2 
   """
   

6. Send it as a message to the Alda server nREPL:

   c.write({"op": "eval-and-play", "code": code})