Paste code

final Intent emailIntent = new Intent(
       android.content.Intent.ACTION_SEND);
     //
//     String address = "asd@gmail.com";
     String subject = "Report";
     String emailtext = "Please check the attached report";
     //
     emailIntent.setType("email/text");

     /*
      * emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,
      * new String[] { address });-
      */
      String fun = Environment.getExternalStorageDirectory()+"/Kalimba.mp3";
      emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      emailIntent.setType("audio/mp3");
      emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,subject);

     // emailIntent.putExtra(Intent.EXTRA_STREAM,URI);

     emailIntent.putExtra(android.content.Intent.EXTRA_TEXT,emailtext);
     emailIntent.putExtra(android.content.Intent.EXTRA_STREAM, Uri.parse("file://"+fun));
     startActivity(android.content.Intent.createChooser(emailIntent,"Send mail..."));
     Toast.makeText(getApplicationContext(), "Success", Toast.LENGTH_LONG).show();

    } catch (Throwable t) {
     Toast.makeText(getApplicationContext(), "error",
       Toast.LENGTH_LONG).show();
    };