Flera av de pianostuderande jag mött, inklusive mig själv, spelade aldrig kammarmusik innan gymnasiet eller musikhögskolan. Det har fått mig fundera över i vilken omfattning klaverstu-derande elever vid kultur- respektive musikskolor deltar i musikaliska samspel. Studien har som syfte att kartlägga i vilken utsträckning lärare i klaverinstrument på kultur- respektive musikskolor i Stockholms län arbetar med musikaliskt samspel med sina elever och vilka faktorer som påverkar vilka elever som samspelar med andra elever. Datainsamling gjordes med hjälp av e-postade enkäter till klaverlärare på kultur- respektive musikskolor. Sedan analyserades svaren univariat, bivariat, tematiskt och samband prövades på sin statistiska signifikans. Resultatet visar dels på att de flesta hade tillfällen då deras elever spelade med någon under deras lektioner, dels att det skilde sig mellan hur lärare arbetade med samspel beroende på om de undervisade individuellt eller som gruppundervisning. Det framgick också att det fanns fyra olika områden som respondenterna menade påverkade vilka elever som fick spela med andra. Dessa var logistiska faktorer, intressen och kompisar hos såväl elev som lärare, elevernas kunskap och ambitioner samt speciella behov hos eleven. I diskussionen problematiseras konsekvenser av individuell undervisning och gruppundervisning samt vad elever lär sig av musikaliskt samspel. / Many piano students I´ve meet, including myself, never played chamber music until they went to gymnasium or university. This made me wonder how many opportunities piano students studying at culture and music schools had to play with others. The purpose of the study is to find out to what extent pianoteachers in these schools in the Stockholm Province work with interaction in music with their students and which factors affects which students interact with others. Data was collected by e-mailing questionnaires to which pianoteachers at the music and cultur schools had to answer. The answers were analyzed univariate, bivariate, tematic and correlations were tested on their statistical significance. The result showes that most teachers occasionally let their students play with someone, during their lessons. The results also showes that it differed between how teachers worked with interaction depending on whether they taught individually or in groups. It also is found that four different types of factors affected the respondents choices of which students who would get the opportunity to play with others. These were logistical factors, interests and friends of both pupil and teacher, the students' knowledge and ambitions, and special needs of the student. In the discussion the consequences of individuell lessons and group lessons are problematized. What the student learn from musical interaction is also discussed.