diff --git a/audio-player.rkt b/audio-player.rkt
index 5796ece..710424e 100644
--- a/audio-player.rkt
+++ b/audio-player.rkt
@@ -270,6 +270,10 @@
     ((_ handle cmd args ...)
      (let ((rv ((audio-play-rpc handle) cmd args ...)))
         (displayln rv)
+        (displayln (internal-audio-retval-kind rv))
+        (displayln (internal-audio-retval-code rv))
+        (displayln (internal-audio-retval-info rv))
+        (displayln (internal-audio-retval-retval rv))
         (if (eq? (internal-audio-retval-kind rv) 'error)
           (raise-audio-error (internal-audio-retval-code rv) (internal-audio-retval-info rv))
           (internal-audio-retval-retval rv))))