UT queant laxis  396 Hz  digit sum 9  Liberating Guilt and Fear 
REsonare fibris 
417 Hz 
digit sum 3 
Undoing Situations and Facilitating Change 
MIra gestorum  528 Hz  digit sum 6  Transformation and Miracles (DNA Repair) 
FAmuli tuorum  639 Hz  digit sum 9  Connecting/Relationships 
SOLlve polluti  741 Hz  digit sum 3  Intuition Activation and Developing 
LAbii reatum  852 Hz  digit sum 6  Returning to Spiritual Order 
The frequencies
refer to the number 9. https://en.wikipedia.org/wiki/9_(number) 

396 Hz

417 Hz

Frequency of the octaves  digit sum 9 0,7734375  9 1,546875  9 3,09375  9 6,1875  9 12,375  9 24,75  9 49,5  9 99  9 198  9 396 Hz  9 792  9 1584  9 3168  9 6336  9 12672  9 25344 9 50688  9 101376  9 202752  9 
Frequency of the octaves  digit sum 0,814453125  6 1,62890625  3 3,2578125  6 6,515625  3 13,03125  6 26,0625  3 52,125  6 104,25  3 208,5  6 417  3 834  6 1668  3 3336  6 6672  3 13344  6 26688  3 53376  6 106752  3 213504  6 
528 Hz

639 Hz

Frequency of
the octaves  digit sum 1,03125  3 2,0625  6 4,125  3 8,25 6 16,5  3 33  6 66  3 132  6 264  3 528  6 1056  3 2112  6 4224  3 8448  6 16896  3 50688  9 101376  9 202752  9 405504  9 811008  9 
Frequency of the octaves  digit sum 1,248046875  9 2,49609375  9 4,9921875  9 9,984375  9 19,96875  9 39,9375  9 79,875  9 159,75  9 319,5  9 639  9 1278  9 2556  9 5112  9 10224  9 40896  9 81792  9 163584 9 327168  9 654336 9 
741 Hz

852 Hz

Frequency of the octaves  digit sum 1,447265625  6 2,89453125  3 5,7890625  6 11,578125  3 23,15625  6 46,3125  3 92,625  6 185,25  370,5  6 741  3 1482  6 2964  3 5928  6 11856  3 23712  6 47424  3 94848  6 189696  3 3379392  6 
Frequency of the octaves  digit sum 1,6640625  3 3,328125  6 6,65625  3 13,3125  6 26,625  3 53,25  6 106,5  3 213  6 426  3 852  6 1704  3 3408  6 6816  3 13632  6 27264  3 54528  6 109056  3 218112  6 436224  3 
refrerence frequency 21  336 HZ  Without Name 
And much more: find out yourself 
More information (translated from the german website "Wissen Datenbank 256 HZ 432 HZ")
An important criterion in the definition of the Solfeggio
frequencies is that all their base values and octave
values in the Theosophical Reduction, always the "Digital
Root" known by Tesla (sums) 3, 6 or 9 result.
In his
work, Nikola Tesla repeatedly pointed out the importance of
these three numbers as fundamental indicators of the divine
and the creative power. He also pointed to the energetic
ordering of our physically describable world.
Regarding the names of the frequencies, I must point out
that they are not authentic names, Leonard Horowitz have
found their way into the world of frequencies. Since 1999,
however, they have developed into their own reality
independent of Mr Horowitz.
And here comes an
important fact:
Why is the frequency 336 HZ not a
solfeggio frequency? Or did I discover one now?
I
quote from the Bach flower portal:
After the
documents presented in "Healing Codes for the Biological
Apocalypse," Dr. Joseph Puleo knew the Pythagorean method of
numerical reduction and discovered the pattern of six
repeating codes.
The Pythagorean method is a simple
reduction method that converts large numbers into single
digits by adding the values of all digits of the number.
If, after the first addition, the number still contains more
than one digit, the process is repeated, e.g. can be reduced
456 to 4 + 5 + 6 = 15 and then reduced to 1 + 5 = 6. Thus,
the number 456 finally decreases to the single digit 6.
Following this pattern, Puleo discovered that the Solfeggio
frequencies are based on this mathematical reduction and can
all be reduced to the checksums 3, 6 and 9 ...
That's
the same with the frequency 336 HZ (21 HZ). Or what about
the frequency 504 HZ (63 HZ)? Or the frequency 648 HZ (81)?
No solfeggios? Did Puleo miss that?
Find new
solfeggio frequencies yourself and try the effects!
The
principle is simple: they always have to think in terms of
reference frequencies. Go through all the odd, whole,
natural numbers. If you encounter a number that gives 3 or 6
or 9 in the checksum, you have found a Solfeggio frequency!
111 HZ is a nice Solfeggio frequency.