diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 8ec78f665c..85a994bbea 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -2679,6 +2679,75 @@ (define-public audio-to-midi
 frequencies.  This data is then formatted to MIDI and written to disk.")
     (license license:expat)))
 
+(define-public raul
+  (package
+    (name "raul")
+    (version "c56e7259")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+              (url "https://gitlab.com/drobilla/raul")
+              (commit "c56e72595ac6478639f6a0b074d24946d652dc4b")
+              (recursive? #t)))
+        (file-name (git-file-name name version))
+        (sha256
+          (base32
+            "1s87ma7pn5g1054rhizmjcjzk5fyil47nk6d8ql4grr85hghrk39"))))
+    (build-system waf-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (delete 'check))))
+    (native-inputs
+     (list python pkg-config))
+    (home-page "http://drobilla.net/software/raul.html")
+    (synopsis "A realtime audio utility library for C++")
+    (description
+     "Raul (Realtime Audio Utility Library) is a C++ utility library
+primarily aimed at audio/musical applications.
+It is used by Ingen, Patchage, and Machina.")
+    (license license:gpl3+)))
+         
+(define-public ingen
+  (package
+    (name "ingen")
+    (version "41dcb999")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+              (url "https://gitlab.com/drobilla/ingen")
+              (commit "41dcb999034254a6aa1161610c38978b0b819b15")
+              (recursive? #t)))
+        (file-name (git-file-name name version))
+        (sha256
+          (base32
+            "0bibwpgjijsz3jj9v43fvgna65w31j65r1r69hp33q6n797jq23s"))))
+    (build-system waf-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (delete 'check))
+       #:configure-flags
+       (list
+        (string-append "LDFLAGS=-Wl,-rpath=" (assoc-ref %outputs "out") "/lib"))))
+    (native-inputs
+     (list
+      python pkg-config boost lilv suil lv2
+      raul jack-1 portaudio libsigc++-2 alsa-lib
+      glibmm-2.64 gtkmm-2 ganv))
+    (home-page "http://drobilla.net/software/ingen.html")
+    (synopsis "Realtime modular audio system based on LV2")
+    (description
+     "Ingen is built around LV2 technology and a strict separation
+of engine from user interface.  The engine is controlled
+exclusively through a protocol, and can execute as a
+headless process, with an in-process GUI, or as an LV2
+plugin.  The GUI can run as a program which communicates
+over a Unix or TCP/IP socket, or as an embeddable LV2
+GUI which communicates via LV2 ports.")
+    (license license:agpl3+)))
+         
+
 (define-public lilv
   (package
     (name "lilv")