======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '309'
                                          'artist'  'Wilson Phillips'
                                     'text_people'  ''
                                         'release'  'The Best Of Wilson Phillips'
                                           'title'  'Listen To Your Heart'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', '90s', 'female vocalists', 'pop', 'girl groups']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-female'
                                             'bpm'  '86.107'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best Of Wilson Phillips'
'TBPM' (BPM (beats per minute))                     '86.107'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-female'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Listen To Your Heart'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wilson Phillips'
'TRCK' (Track number/Position in set)               '8'
'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:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['80s', '90s', 'female vocalists', 'pop', 'girl groups']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.355700'

========================== row from database ==========================
                                              'id'  1341234
                                            'path'  /data/Music/Bulk/00poprockelectronic/Wilson Phillips/1998 - The Best Of Wilson Phillips__08 - Listen To Your Heart.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  309
                                           'genre'  electronic-generic or radio-female
                                        'filesize'  4328945
                                           'mtime'  1622801116
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1998 Phillips__08 electronic generic or radio female
                                      'tag_artist'  Wilson Phillips
                                     'tag_release'  The Best Of Wilson Phillips
                                       'tag_title'  Listen To Your Heart
                                             'bpm'  86.107
                                    'search_title'  'heart':4 'listen':1 'to':2 'your':3
                                   'search_artist'  'phillips':2 'wilson':1
                                  'search_release'  'best':2 'of':3 'phillips':5 'the':1 'wilson':4
                                     'search_rest'  '00poprockelectronic':1 '08':4 '1998':2 'electronic':5 'female':9 'generic':6 'or':7 'phillips':3 'radio':8
                                    'search_combo'  '00poprockelectronic':12 '08':15 '1998':13 'best':8C 'electronic':16 'female':20 'generic':17 'heart':4A 'listen':1A 'of':9C 'or':18 'phillips':6B,11C,14 'radio':19 'the':7C 'to':2A 'wilson':5B,10C 'your':3A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', '90s', 'female vocalists', 'pop', 'girl groups']
                                        'tag_date'  1990
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1622801116.0389366  (2021-06-04 12:05:16)
                             'size'  4328945