Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
application()
application(org.kde.kmix.desktop)
kdemultimedia-kmix
kmix
kmix(x86-64)
libkmixcore.so.5()(64bit)
metainfo()
metainfo(org.kde.kmix.appdata.xml)

Requires :

/usr/bin/sh
kf5-kinit(x86-64)
libKF5ConfigCore.so.5()(64bit)
libKF5ConfigGui.so.5()(64bit)
libKF5ConfigWidgets.so.5()(64bit)
libKF5CoreAddons.so.5()(64bit)
libKF5Crash.so.5()(64bit)
libKF5DBusAddons.so.5()(64bit)
libKF5GlobalAccel.so.5()(64bit)
libKF5I18n.so.5()(64bit)
libKF5Notifications.so.5()(64bit)
libKF5Solid.so.5()(64bit)
libKF5WidgetsAddons.so.5()(64bit)
libKF5WindowSystem.so.5()(64bit)
libKF5XmlGui.so.5()(64bit)
libQt5Core.so.5()(64bit)
libQt5Core.so.5(Qt_5)(64bit)
libQt5Core.so.5(Qt_5.15)(64bit)
libQt5DBus.so.5()(64bit)
libQt5DBus.so.5(Qt_5)(64bit)
libQt5Gui.so.5()(64bit)
libQt5Gui.so.5(Qt_5)(64bit)
libQt5Widgets.so.5()(64bit)
libQt5Widgets.so.5(Qt_5)(64bit)
libasound.so.2()(64bit)
libasound.so.2(ALSA_0.9)(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.32)(64bit)
libc.so.6(GLIBC_2.34)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_ABI_DT_RELR)(64bit)
libcanberra.so.0()(64bit)
libkmixcore.so.5()(64bit)
libpulse.so.0()(64bit)
libpulse.so.0(PULSE_0)(64bit)
libstdc++.so.6()(64bit)
libstdc++.so.6(CXXABI_1.3)(64bit)
libstdc++.so.6(CXXABI_1.3.9)(64bit)
libstdc++.so.6(GLIBCXX_3.4)(64bit)
libstdc++.so.6(GLIBCXX_3.4.32)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
rtld(GNU_HASH)

Content of RPM :
/etc/xdg/autostart/kmix_autostart.desktop
/etc/xdg/autostart/restore_kmix_volumes.desktop
/usr/bin/kmix
/usr/bin/kmixctrl
/usr/bin/kmixremote
/usr/lib/.build-id
/usr/lib/.build-id/56
/usr/lib/.build-id/56/1b2d0d6bfed54b7e21efed0bc0435c28014fc0
/usr/lib/.build-id/93
/usr/lib/.build-id/93/e6a40bb665e4c79d9a842ce7ee442dc0b3221c
/usr/lib/.build-id/95
/usr/lib/.build-id/95/7a970589e232f47214794c1bbccdd8b195a8ba
/usr/lib/.build-id/f1
/usr/lib/.build-id/f1/319a3a2c75524a4b99ced178a3bc36afff7538
/usr/lib64/libkmixcore.so.24.08.2
/usr/lib64/libkmixcore.so.5
/usr/lib64/qt5/plugins/kf5/kded/kmixd.so
/usr/share/applications/org.kde.kmix.desktop
/usr/share/config.kcfg/kmixsettings.kcfg
/usr/share/dbus-1/interfaces/org.kde.kmix.control.xml
/usr/share/dbus-1/interfaces/org.kde.kmix.mixer.xml
/usr/share/dbus-1/interfaces/org.kde.kmix.mixset.xml
/usr/share/doc/HTML/ca/kmix
/usr/share/doc/HTML/ca/kmix/index.cache.bz2
/usr/share/doc/HTML/ca/kmix/index.docbook
/usr/share/doc/HTML/cs/kmix
/usr/share/doc/HTML/cs/kmix/index.cache.bz2
/usr/share/doc/HTML/cs/kmix/index.docbook
/usr/share/doc/HTML/de/kmix
/usr/share/doc/HTML/de/kmix/index.cache.bz2
There is 210 files more in these RPM.