It is uncomfortable to be dismissed during the probation period of the musical instrument store.

Legally speaking, during the probation period, the employee may terminate the labor contract if he is dissatisfied with the employer or thinks it is not suitable for work.

If the unit dismisses you on the grounds that you do not meet the employment conditions, it shall provide the employment conditions announced when recruiting you (or the employment conditions explicitly required by the internal signed agreement) and the proof that you do not meet the employment conditions during the probation period. If these two evidences cannot be provided at the same time, it is illegal for the unit to unilaterally terminate the labor contract.

You can ask the unit to continue to perform the contract. If you don't ask the unit to continue to perform the contract, the unit will pay you two and a half months' salary, that is, one month's salary, according to your less than half a year's service in the unit. The so-called negative remarks cannot be used as a legal reason for the unit to terminate the labor contract or labor relationship.

However, the cost of legal channels is too high, and it is often not worth the loss. In real life, many people adopt the method of comity in front of the enemy. The law is only the basis of their argument.