Creating sound continuity between two notes in the source and destination positions when left hand position changes and “two different finger numbers” are involved is called portamento. Portamento can be performed on single string or two neighboring strings and with hand moving on fingerboard either upward or downward.

When the author was working on the piece “Playing Love” by Ennio Morricone (from the legend of 1900), he realized a failure of the Lip Technique. Needing to play a chord in the 14th position of the guitar and in order to complete the harmony, it is necessary to play a harmonic note on the 7th or 5th position; it was not possible to touch the string to play this harmonic note, because the Lip Technique is used for getting the notes and not to touch the string and producing harmonic notes. Naturally, the only possible way to touch the string was to use the nose at the required position and playing the note with the right hand, and this was the best option the author found to how to play such harmonic notes, and where the Nose Technique was generated.

In 1990  an Austria-based Persian musician Khosro Soltani, in cooperation with Hossein Alizadeh, put out an album entitled, Ancient Call A New (Nobang-e Kohan). After many years, a few ancient Persian instruments such as Sorna, Karna, Naghareh,etc. have been used, instruments which have been left out of the circle of Persian classical musical instruments for centuries.

Despite the fact that Iranian folk music (regional music of Iran), like the Radif of Iranian traditional music, is monophonic and follows heterophony in principal, we experience polyphonic forms, albeit, majorly unconscious.

Today, percussion instruments have such a high place in music that are an essential element of orchestras. This has attracted many people to this type of instrument with roots as old as the first humans. A historical study of music, shows that humans used the sound of these instruments to defend themselves against wild animals and, over time, for alerting each other, signaling their readiness and encouraging people for war, ritual ceremonies, dances, etc. in a manner that is still clearly visible in music and some ritual ceremonies.

Payam Taghadossi (born in 1989) started his musical education at the age of 4 years with Monika Scherbaum in Bregenz (Austria). At the Conservatory Feldkirch he joined the class of Imke Frank and Martin Merker. Later he studied in Zurich (Switzerland) with Thomas Grossenbacher and Christian Proske, where he 2011 graduated as a Bachelor of Arts in Music Performance. Two years later as the student of Rafael Rosenfeld he received his Master of Arts in Music Performance diploma and later graduated as a Master of Arts in spezialized Music Performance in 2016 from the Hochschule für Musik Basel FHNW.

One of the most popular terms used by Iranian instrumentalists is the existence or a lack of musical “sense”. Both musicians and fans of music consider having “sense” while playing music as an important principle to the extent that they use it vis-a-vis having technique.

Conclusion

“Daf” is one of type of percussion instruments that has a long history and is commonly known as circular instruments (with a rim). In some tribes, Daf was used as the main instrument in festivity and joy ceremonies; in another tribe it was used as the main instrument for war and campaign ceremonies and some others used it for ritual and religious ceremonies.

The term “School of Vaziri” is often used in writings on Iranian music, but the exact meaning of the term is not clear; some of the authors have used the term to only refer to the group of Vaziri’s students, including a large group of his conservatory students and his Tar students such as Abolhassan Saba, Rouhollah Khaleghi, Ahmad Foroutan Rad, Hossein Sanjari, Heshmat Sanjari and others. But can we consider all Vaziri’s students as followers of his school of thought? This is definitely a mistake, because we know that some of Vaziri’s students have chosen a completely different path than that of Vaziri.

Shaahin Mohajeri, the award-winning Iranian microtonal compose, has contributed to The Art of Silence is an international project which features unpublished pieces by microtonal composers from Iran, Japan, the United States, and other countries.