STEP 2: Search web for desire song lyrics, you have to find either ".lrc" file or lyrics with time stamp for example "[00:04:02] Some lyrics text". If you find lyric’s file that’s great or find lyrics text with time stamp you have create “.lrc” file.
STEP 3: Now you have to be rename the file in such way that <song_name> - <artist_name>.lrc for better matching copy <song_name> and <artist_name> from tag editor and rename
STEP 4: You have to copy/ move the file into location in sdcard whatever_sdcard/RetroMusic/lyrics/ paste inside your ".lrc" file.