Music App1. practise file I/O and exception handling;2. practise String processing.Aim:Task: Create a Java application that transcripts a simple song score sheet.The program asks user for filename of a text file that contains a simple song score sheet in this format:Sample song score sheet 1, song1.txt:#simple song with assumed time signature = 4d1mls202s 1mld2o2d1rimlfls 301s1f1m1rld4Lines beginning with a hash #' is a comment line. A song contains one or more lines of musicalnotes, d, r, m, f, s, l, tand also o meaning "Off" or rest. Each single character note isfollowed by a single digit integer in [1 – 4], denoting the duration of the note in number of beats.After transcription, the program outputs the melody on the screen as well as to another text file:Melody output 1, on screen AND in melody_song1.txt:#simple song with assumed time signatureDo Me So- Off- So MeDo Re Me Fa| So-- Off= 4Do- Off- |So Fa Me Re Do---|The default time signature is 4 beats per section. Sections are delimited by bars '. Notes areconverted into full-names with 2 characters, Do, Re, Me, Fa, So, La, Ti, and Off. Notes lasting forone beat are displayed directly. A note lasting two or more beats are elongated with a display ofdashes -', e.g., So-- for s3. Notes and bars are delimited by a space.Time signature can be changed with a newline starting with an asterisk *', followed by a single digitinteger n in [1– 6]. Transcript and output such a line as "#Time Signature = n", e.g.,Sample song score sheet 2, song2.txt:#song with different time signatures*3d1rimlo3m1r1d1d1rımlflslols1flm1r1d2*2d2r1mlfls111t1*4d4r4o2m2Melody output 2, on screen AND in melody_song2.txt:#song with different time signatures#Time Signature = 3Do Re Me Off--| Me Re DoDo Re Me Fa So Off So Fa MeRe Do- #Time SignatureDo- Re Me Fa So La Ti#Time Signature == 24Do---| Re---| Off- Me-Then, the program terminates.To simplify this task, we assume:Input song text files always contain valid data.The time signature designation and the note durations are always valid.Section bars shall NOT cut a multiple beat notes, e.g., Do--A section shall not continue between two lines.We accept optionally an extra space at the end of the output lines.Re- will NOT happen.Procedure:1.Work under a NetBeans Java Application project MusicApp. Name the package as musicapp.2. Complete the program according to the above descriptions as well as the samples given.Note that file operations may fail. We give the user THREE chances to input a proper inputfilename. If all fails, the program terminates with System. exit (1).Song filename: a.exeSomething wrong!Song filename: C:/xyzSomething wrong!Song filename:Something wrong!a3.Screen output of a complete sample run with text in blue indicates user keyboard input:Song filename: aSomething wrong!Song filename: a.exeSomething wrong!Song filename: song2.txtReading song file song2.txt#song with different time signatures#Time Signature = 3Do Re MeDo Re Me#Time Signature = 2Do- Re Me Fa So | La Ti#Time Signature = 4Off-- Me Re Do ||Fa So Off | So Fa Me | Re Do- |Do---| Re---| Off- Me- |The program also outputs those text in yellow highlight to another output text file namedmelody_song2.txt,i.e., prefixed melody_.

Question

Music App1. practise file I/O and exception handling;2. practise String processing.Aim:Task: Create a Java application that transcripts a simple song score sheet.The program asks user for filename of a text file that contains a simple song score sheet in this format:Sample song score sheet 1, song1.txt:#simple song with assumed time signature = 4d1mls202s 1mld2o2d1rimlfls 301s1f1m1rld4Lines beginning with a hash #' is a comment line. A song contains one or more lines of musicalnotes, d, r, m, f, s, l, tand also o meaning &#34;Off&#34; or rest. Each single character note isfollowed by a single digit integer in [1 – 4], denoting the duration of the note in number of beats.After transcription, the program outputs the melody on the screen as well as to another text file:Melody output 1, on screen AND in melody_song1.txt:#simple song with assumed time signatureDo Me So- Off- So MeDo Re Me Fa| So-- Off= 4Do- Off- |So Fa Me Re Do---|The default time signature is 4 beats per section. Sections are delimited by bars '. Notes areconverted into full-names with 2 characters, Do, Re, Me, Fa, So, La, Ti, and Off. Notes lasting forone beat are displayed directly. A note lasting two or more beats are elongated with a display ofdashes -', e.g., So-- for s3. Notes and bars are delimited by a space.Time signature can be changed with a newline starting with an asterisk *', followed by a single digitinteger n in [1– 6]. Transcript and output such a line as &#34;#Time Signature = n&#34;, e.g.,Sample song score sheet 2, song2.txt:#song with different time signatures*3d1rimlo3m1r1d1d1rımlflslols1flm1r1d2*2d2r1mlfls111t1*4d4r4o2m2Melody output 2, on screen AND in melody_song2.txt:#song with different time signatures#Time Signature = 3Do Re Me Off--| Me Re DoDo Re Me Fa So Off So Fa MeRe Do- #Time SignatureDo- Re Me Fa So La Ti#Time Signature == 24Do---| Re---| Off- Me-Then, the program terminates.To simplify this task, we assume:Input song text files always contain valid data.The time signature designation and the note durations are always valid.Section bars shall NOT cut a multiple beat notes, e.g., Do--A section shall not continue between two lines.We accept optionally an extra space at the end of the output lines.Re- will NOT happen.Procedure:1.Work under a NetBeans Java Application project MusicApp. Name the package as musicapp.2. Complete the program according to the above descriptions as well as the samples given.Note that file operations may fail. We give the user THREE chances to input a proper inputfilename. If all fails, the program terminates with System. exit (1).Song filename: a.exeSomething wrong!Song filename: C:/xyzSomething wrong!Song filename:Something wrong!a3.Screen output of a complete sample run with text in blue indicates user keyboard input:Song filename: aSomething wrong!Song filename: a.exeSomething wrong!Song filename: song2.txtReading song file song2.txt#song with different time signatures#Time Signature = 3Do Re MeDo Re Me#Time Signature = 2Do- Re Me Fa So | La Ti#Time Signature = 4Off-- Me Re Do ||Fa So Off | So Fa Me | Re Do- |Do---| Re---| Off- Me- |The program also outputs those text in yellow highlight to another output text file namedmelody_song2.txt,i.e., prefixed melody_.

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