======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '456'
                                          'artist'  'Peter Gabriel & Kate Bush'
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  "Don't give up"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['pop', 'duets', '80s', 'progressive rock', 'nostalgia']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '106.419'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '106.419'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         "Don't give up"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Peter Gabriel & Kate Bush'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '150,184'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '059'
'TXXX:lastfmtags'                                   ['pop', 'duets', '80s', 'progressive rock', 'nostalgia']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.621458'

========================== row from database ==========================
                                              'id'  1496910
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/059-Peter_Gabriel_&_Kate_Bush-Don_t_give_up.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  456
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7301330
                                           'mtime'  1621854167
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 059 Peter_Gabriel_&_Kate_Bush Don_t_give_up electronic generic or radio dance
                                      'tag_artist'  Peter Gabriel & Kate Bush
                                     'tag_release'  top100
                                       'tag_title'  Don't give up
                                             'bpm'  106.419
                                    'search_title'  'don':1 'dont':3 'give':4 't':2 'up':5
                                   'search_artist'  'bush':4 'gabriel':2 'kate':3 'peter':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 'bush':8,12 'dance':3 'don':13 'electronic':17 'gabriel':6,10 'generic':2 'give':15 'kate':7,11 'or':18 'peter':5,9 'radio':19 't':14 'trapbeat':4 'up':16
                                    'search_combo'  '00poprockelectronic':11 'bush':9B,18,22 'dance':13 'don':1A,23 'dont':3A 'electronic':27 'gabriel':7B,16,20 'generic':12 'give':4A,25 'kate':8B,17,21 'or':28 'peter':6B,15,19 'radio':29 't':2A,24 'top100':10C 'trapbeat':14 'up':5A,26
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'duets', '80s', 'progressive rock', 'nostalgia']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621854166.9115758  (2021-05-24 13:02:46)
                             'size'  7301330