The basic tuning of the instrument is A. There are various ways to string the instrument. Either one decides for a pure monochord tuning (contra A and A) , a tambura tuning (contra A, A, and E) or a chord tuning (contra A, A, E and Cis).
The most proven has been a split of the tuning into two halves. One half of the instrument as monochord and the other half as tambura with the possibility to tune it as a chord. This is how all possibilities have been combined.
In addition, there is the possibility to tune part of the strings to a higher tone with an extra bridge, which can be set up very easily.
And finally, there is a table extension (40 cm long, 20 cm wide) for the soundbed, which can be mounted on the side of the instrument and can be pushed to any position. This is suitable for integrating singing bowls into the sound work.
Due to the fact that the instrument has smaller dimensions compared to the pure soundbed, it can also be transported in a normal car, which can be interesting for therapists who plan to take the instrument with them on trips.