What kind of cultic belief system does this come from? EBay auction (192326458369) description:

6 different Sacred Solfeggio Tuned Pipes, together with rubber mallet, wooden stand and a single wooden hand stave. Can be used on the stand or by holding the stave/pipe by hand. Made from High Quality Heat Treated Aluminium.
Solfeggio frequencies make up the ancient 6-tone scale thought to have been used in sacred music, including Gregorian chanting.
Each Solfeggio tone is comprised of a frequency required to balance your energy and keep your body, mind and spirit in perfect harmony.
The main six Solfeggio frequencies are:

UT – 396 Hz – turning grief into joy, liberating guilt & fear

RE – 417 Hz – undoing situations & facilitating change

MI – 528 Hz – transformation & miracles, repairing DNA

FA – 639 Hz – relationship, connecting with spiritual family

SOL – 741 Hz – expression/solutions, cleaning & solving

LA – 852 Hz – returning to spiritual order

These pipes make a beautiful, soothing, healing sound. The sound resonates for some time after striking the pipe.
Height of stand 136 cm and width 81cm.