diff --git a/extra/csound/.SRCINFO b/extra/csound/.SRCINFO
new file mode 100644
index 000000000..e2b98a175
--- /dev/null
+++ b/extra/csound/.SRCINFO
@@ -0,0 +1,82 @@
+pkgbase = csound
+	pkgdesc = Programming language for sound rendering and signal processing
+	pkgver = 6.18.1
+	pkgrel = 4
+	url = https://csound.com
+	arch = x86_64
+	license = LGPL-2.1-or-later
+	checkdepends = cunit
+	makedepends = alsa-lib
+	makedepends = cmake
+	makedepends = doxygen
+	makedepends = dssi
+	makedepends = fluidsynth
+	makedepends = hdf5
+	makedepends = jack
+	makedepends = java-environment
+	makedepends = ladspa
+	makedepends = libmusicxml
+	makedepends = libsamplerate
+	makedepends = libsndfile
+	makedepends = libwebsockets
+	makedepends = llvm
+	makedepends = lua
+	makedepends = openssl
+	makedepends = portaudio
+	makedepends = portmidi
+	makedepends = portsmf
+	makedepends = python
+	makedepends = stk
+	makedepends = strip-nondeterminism
+	makedepends = swig
+	makedepends = wiiuse
+	source = https://github.com/csound/csound/archive/6.18.1/csound-6.18.1.tar.gz
+	source = csound.sh
+	source = https://github.com/csound/csound/releases/download/6.17.0/Csound6.17.0_manual_html.zip
+	source = https://github.com/csound/csound/releases/download/6.17.0/Csound6.17.0_manual_pdf.zip
+	sha512sums = 4ea4dccb36017c96482389a8d139f6f55c79c5ceb9cc34e6d2bfabcb930b4833d0301be4a4b21929db27b2d8ce30754b5c5867acd2ea5a849135e1b8d1506acf
+	sha512sums = 53a8ae1e61db2a3a492930ef0f0881b613ae47108c5e8de0a6e2aa28bcf7a5c93c7fea8b7fc2bbae29ab92e1e68bf94ba406be1255ad8ab5725ea9078c1fd6dc
+	sha512sums = ff2098828e51e78aa80b10736ea162d90c0b1bef3265e469951a5df63250d283e852490cb2a6599dcb1b8a5c185cf4f0b9534f501e4cb755b9da67ecfb1f4ba6
+	sha512sums = bf664bab1dec073b48853ccf7519086c55ad74af33db86ac7f95746231c18fb10d46a485047788050094e412d27bbd0df65e238d31b01b435989f2fd734189a6
+	b2sums = 1b258724dd986eea63921e36b43235eb05702729ee31e40ef724f7e7644755adeb5a3abdca9188d65296882d5f532693c0f9fc742ee5d39ccc7fbed860ec0bf4
+	b2sums = 8a556685d0f9ee55c4de521b3d76fc729936e98e991e8ea860d64b29a1b09d142ab0a51548b2dddadb41ecb796e84ba1f8ed114494b4c67d7d6d8ab3475b2ede
+	b2sums = 3148a60a398d49d6932864d84b2ee37ddf86d5389b91c99443b2c64f7c3b270d040b83ac88b80ebc772c198223682452da1618391fcc8963fe63151b7837037e
+	b2sums = c0210f2fb97a6707ae6cd0a0cf38cd374f4d4c973b188ee8d418a7efd5c98dc1d4e61867de021ed2859bd8264cc0876b46deb565c358b6efea42f471d39671a9
+
+pkgname = csound
+	groups = pro-audio
+	depends = curl
+	depends = libcurl.so
+	depends = gcc-libs
+	depends = glibc
+	depends = libsamplerate
+	depends = libsamplerate.so
+	depends = libsndfile
+	depends = libsndfile.so
+	optdepends = alsa-lib: for librtalsa plugin
+	optdepends = csound-doc: for the canonical Csound Reference Manual
+	optdepends = csound-plugins: for additional opcodes
+	optdepends = csoundqt: for frontend/ editor with integrated help
+	optdepends = hdf5: for hdf5ops plugin
+	optdepends = java-runtime: java integration
+	optdepends = fluidsynth: for libfluidOpcodes plugin
+	optdepends = jack: for libjacko, librtjack and libjackTransport plugins
+	optdepends = liblo: for libosc plugin
+	optdepends = ncurses: for libfaustcsound plugin
+	optdepends = portmidi: for libpmidi plugin
+	optdepends = portaudio: for librtpa plugin
+	optdepends = libpulse: for librtpulse plugin
+	optdepends = stk: for libstkops plugin
+	optdepends = libwebsockets: for libwebsocketIO plugin
+	optdepends = wiiuse: for libwiimote plugin
+	optdepends = libx11: for libwidgets plugin
+	optdepends = lua: for LUA integration
+	optdepends = openssl: for libfaustcsound plugin
+	optdepends = python-numpy: For Csound Python bindings
+	optdepends = vim-csound: vim integration
+	optdepends = zlib: for libfaustcsound plugin
+	provides = libcsound64.so
+	provides = libcsnd6.so
+
+pkgname = csound-doc
+	pkgdesc = Programming language for sound rendering and signal processing - documentation
diff --git a/extra/csound/.nvchecker.toml b/extra/csound/.nvchecker.toml
new file mode 100644
index 000000000..f21c9fadf
--- /dev/null
+++ b/extra/csound/.nvchecker.toml
@@ -0,0 +1,3 @@
+[csound]
+source = "git"
+git = "https://github.com/csound/csound"
diff --git a/extra/csound/PKGBUILD b/extra/csound/PKGBUILD
index 4be90c183..927ffeb72 100644
--- a/extra/csound/PKGBUILD
+++ b/extra/csound/PKGBUILD
@@ -14,11 +14,11 @@ pkgbase=csound
 pkgname=(csound csound-doc)
 pkgver=6.18.1
 _manual_pkgver=6.17.0
-pkgrel=3
+pkgrel=4
 pkgdesc="Programming language for sound rendering and signal processing"
 arch=(x86_64)
 url="https://csound.com"
-license=(LGPL2.1)
+license=(LGPL-2.1-or-later)
 # libpd needs to be packaged: https://github.com/libpd/libpd/releases
 # gmm > 5.1 breaks linear-algebra opcode: https://github.com/csound/csound/issues/920
 makedepends=(