diff --git a/recipes-musicians/wolf-spectrum/wolf-spectrum.bb b/recipes-musicians/wolf-spectrum/wolf-spectrum.bb
new file mode 100644
index 0000000..370e9da
--- /dev/null
+++ b/recipes-musicians/wolf-spectrum/wolf-spectrum.bb
@@ -0,0 +1,42 @@
+SUMMARY = "Wolf Spectrum is a free spectrogram plugin"
+HOMEPAGE = "https://github.com/pdesaulniers/wolf-spectrum"
+LICENSE = "GPLv3"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=4fe869ee987a340198fb0d54c55c47f1"
+
+DEPENDS = " \
+    jack \
+    lv2 \
+"
+
+inherit pkgconfig qemu-ext pack_audio_plugins
+
+SRC_URI = "gitsm://github.com/pdesaulniers/wolf-spectrum.git"
+SRCREV = "87d7aca59e295141a1e8019788267d3ef6d6cae7"
+S = "${WORKDIR}/git"
+PV = "1.0.0"
+
+export PREFIX="${prefix}"
+
+do_compile() {
+    rm -f ${WORKDIR}/lv2_ttl_generator-data
+    # manipulate scripts to keep lv2_ttl_generator-calls in script for qemu
+    sed -i 's|"$GEN" "./$FILE"|echo `pwd`/$FILE >> ${WORKDIR}/lv2_ttl_generator-data|g' ${S}/dpf/utils/generate-ttl.sh
+
+    NOOPT=true \
+    SKIP_STRIPPING=true \
+    BUILD_VST2=true \
+    BUILD_LV2=true \
+    BUILD_JACK=true \
+    oe_runmake
+
+    # build ttl-files must be done in quemu
+    for sofile in `cat ${WORKDIR}/lv2_ttl_generator-data`; do
+        cd `dirname ${sofile}`
+        echo "QEMU lv2_ttl_generator for ${sofile}..."
+        ${@qemu_run_binary_local(d, '${STAGING_DIR_TARGET}', '${S}/dpf/utils/lv2_ttl_generator')} ${sofile} || echo "ERROR: for QEMU lv2_ttl_generator for ${sofile}!"
+    done
+}
+
+do_install() {
+    oe_runmake DESTDIR=${D} PREFIX=${prefix} install
+}
diff --git a/recipes-support/packagegroups/musicians-world.bb b/recipes-support/packagegroups/musicians-world.bb
index ce466b2..d09c83e 100644
--- a/recipes-support/packagegroups/musicians-world.bb
+++ b/recipes-support/packagegroups/musicians-world.bb
@@ -134,6 +134,7 @@ RDEPENDS_${PN} += " \
     triceratops-lv2 \
     vamp-plugin-sdk \
     wolf-shaper-dssi wolf-shaper-lv2 wolf-shaper-vst \
+    wolf-spectrum wolf-spectrum-lv2 wolf-spectrum-vst \
     \
     \
     avldrums.lv2 \