Applicability of sec 44ad or sec 44ada

Will not come under ADA. MOST PROBABLY AD

1. There is no definition for the profession as contemplated in income tax. Only certain kinds of work involving intellectual or manual skills which are unique and specific to such individuals are considered as a profession. 
2. Moreover, the profession is more of an individual basis, a service which are not common and it requires a certain set of skills which are done by that particular individual alone.  
3. Rule 6F of Income-tax rules 1962 specifies "Film Artists" as a profession which also includes music directors and assistant music directors. However, there is no express notification which says playing instruments will be considered as a profession. But if you look at the nature of work (playing guitar) it requires a unique set of skill and talent. Hence it should be considered as a profession and on the other hand, it cannot be considered as business. So that adds more reason to consider 'Playing guitar in a bar" as a profession. 
4. In that case presumptive taxation, u/s 44ADA can be opted. 
5. However, it would be best if you verify the type of profession specified in IT return for more clarity. 
Please correct me if the above interpretation has an alternative view.