======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '80'
                                          'artist'  'Cozy Powell'
                                     'text_people'  ''
                                         'release'  'Pagan Love Vibrations'
                                           'title'  'So You Want To Be A Drummer - (Aka And Then There Was Skin)'
                                           'quals'  ("['q-bass-3', 'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['70s', 'instrumental', 'drums', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-cpp-psychedelic'
                                             'bpm'  '119.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Pagan Love Vibrations'
'TBPM' (BPM (beats per minute))                     '119.7'
'TCON' (Content type, a.k.a. Genre)                 'rock-cpp-psychedelic'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'So You Want To Be A Drummer - (Aka And Then There Was Skin)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cozy Powell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '4'
'TXXX:TOTALTRACKS'                                  '23'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['70s', 'instrumental', 'drums', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.495941'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Gunter Kallman Chor - Amorphous Androgynous, the - A Monstrous Psychedelic Bubble Vol 2 - Pagan Love Vibrations [2009]/2.04. Cozy Powell - So You Want To Be A Drummer - (Aka And Then There Was Skin).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  80
                                           'genre'  rock-cpp-psychedelic
                                        'filesize'  3233255
                                           'mtime'  1620174203
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Gunter Kallman Chor Amorphous Androgynous, the Monstrous Psychedelic Bubble Vol 2 [2009] 2.04. rock cpp psychedelic
                                      'tag_artist'  Cozy Powell
                                     'tag_release'  Pagan Love Vibrations
                                       'tag_title'  So You Want To Be A Drummer - (Aka And Then There Was Skin)
                                             'bpm'  119.7
                                    'search_title'  'a':6 'aka':8,9 'and':10 'be':5 'drummer':7 'skin':14,15 'so':1 'then':11 'there':12 'to':4 'want':3 'was':13 'you':2
                                   'search_artist'  'cozy':1 'powell':2
                                  'search_release'  'love':2 'pagan':1 'vibrations':3
                                     'search_rest'  '04':17 '2':13,16 '2009':14,15 '204':18 'amorphous':5 'androgynous':6,7 'bubble':11 'chor':4 'classicprogpsy':1 'cpp':20 'gunter':2 'kallman':3 'monstrous':9 'psychedelic':10 'rock':19 'the':8 'vol':12
                                    'search_combo'  '04':37 '2':33,36 '2009':34,35 '204':38 'a':6A 'aka':8A,9A 'amorphous':25 'and':10A 'androgynous':26,27 'be':5A 'bubble':31 'chor':24 'classicprogpsy':21 'cozy':16B 'cpp':40 'drummer':7A 'gunter':22 'kallman':23 'love':19C 'monstrous':29 'pagan':18C 'powell':17B 'psychedelic':30 'rock':39 'skin':14A,15A 'so':1A 'the':28 'then':11A 'there':12A 'to':4A 'vibrations':20C 'vol':32 'want':3A 'was':13A 'you':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['q-vocals-1', 'q-piano-1', 'q-play-3', 'q-drums-4', 'q-chart-2', 'q-other-3', 'q-bass-3']
                                      'lastfmtags'  ['70s', 'instrumental', 'drums', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620174202.882826  (2021-05-05 02:23:22)
                             'size'  3233255