Question

pls tell me the difference between adjective clause and adverb clause

Answer 1

The clause bracketed is adding info about "was confident ' , the verb.. It is an adverbial clause. 

                                                            or

The clause bracketed in the second example is giving extra info ( modifying) the noun music. It is a adjective clause. 

You have to figure out what word the clause is telling more about ( modifying). 

If it's a noun or pronoun then it is an adjective clause. 

If it is a verb , then it is an adverbial clause. 

Just you learned in grade 6 except more words. 

hot house ... hot is an adjective describing the noun house. 

ran fast.... fast is an adverb modifying the verb ran The difference is what type of word they are talking about ('modifying"). An adjective clause will modify or explain a noun or pronoun. An adverb clause will modify a verb, adverb, or another adjective. In the first example above, the clause modifies the word "confident", which is used as a predicative adjective. Thus, the clause is an adverb clause. In your second example, the clause modifies the word "music" , which is a noun. So, it is an adjective clause

Answer 2

An adverb clause is a dependent clause that modifies a verb, adjective or another adverb. It usually modifies the verb.

Example: They arrived before the game had ended. ("before the game had ended" is the adverb clause modifying the verb arrived telling when.)

The adjective clause is used to modify a noun or a pronoun. It will begin with a relative pronoun (who, whose, whom, which, and that) or a subordinate conjunction (when and where).
Examples: The student whose hand was up gave the wrong answer.