======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Guano Apes'
                                     'text_people'  ''
                                         'release'  "Don't Give Me Names"
                                           'title'  'I Want It'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'female vocalists', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-gr-alt;set-pl-mor'
                                             'bpm'  '112.072'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Don't Give Me Names"
'TBPM' (BPM (beats per minute))                     '112.072'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-alt', 'set-pl-mor']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'I Want It'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Guano Apes'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.496464'

========================== row from database ==========================
                                              'id'  1526759
                                            'path'  /data/Music/Bulk/00poprockelectronic/Guano Apes/Don_t Give Me Names/MBZ;#Guano Apes;#Don_t Give Me Names;#07;#I Want It.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  rock-gr-alt;set-pl-mor
                                        'filesize'  3182093
                                           'mtime'  1636902898
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Don_t MBZ;#Guano Apes;#Don_t Names;#07;#I rock gr alt;set pl mor
                                      'tag_artist'  Guano Apes
                                     'tag_release'  Don't Give Me Names
                                       'tag_title'  I Want It
                                             'bpm'  112.072
                                    'search_title'  'i':1 'it':3 'want':2
                                   'search_artist'  'apes':2 'guano':1
                                  'search_release'  'don':1 'dont':3 'give':4 'me':5 'names':6 't':2
                                     'search_rest'  '00poprockelectronic':1 '07':15,18 'alt':22,24 'apes':8,11 'don':2,9,12 'gr':21 'guano':5,7 'i':16,19 'mbz':4,6 'mor':27 'names':14,17 'pl':26 'rock':20 'set':23,25 't':3,10,13
                                    'search_combo'  '00poprockelectronic':12 '07':26,29 'alt':33,35 'apes':5B,19,22 'don':6C,13,20,23 'dont':8C 'give':9C 'gr':32 'guano':4B,16,18 'i':1A,27,30 'it':3A 'mbz':15,17 'me':10C 'mor':38 'names':11C,25,28 'pl':37 'rock':31 'set':34,36 't':7C,14,21,24 'want':2A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'female vocalists', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636902898.288034  (2021-11-14 16:14:58)
                             'size'  3182093