======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '202'
                                          'artist'  'Whigfield'
                                     'text_people'  ''
                                         'release'  'Whigfield'
                                           'title'  'Big Time'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'eurodance', 'female vocalists', 'pop', '90s']"
                                     'discogstags'  "['electronic', 'euro house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '95.754'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whigfield'
'TBPM' (BPM (beats per minute))                     '95.754'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Big Time'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Whigfield'
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['electronic', 'euro house']
'TXXX:lastfmtags'                                   ['dance', 'eurodance', 'female vocalists', 'pop', '90s']
'TXXX:original release date'                        ['1995', '1995']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.502622'

========================== row from database ==========================
                                              'id'  1349456
                                            'path'  /data/Music/Bulk/00poprockelectronic/00electro-electropop-synthpop/Whigfield/Whigfield/MBZ;#Whigfield;#Whigfield;#04;#Big Time.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  202
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  4058658
                                           'mtime'  1621695965
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00electro electropop synthpop MBZ;#Whigfield;#Whigfield;#04;#Big electronic we electropop or synthpop
                                      'tag_artist'  Whigfield
                                     'tag_release'  Whigfield
                                       'tag_title'  Big Time
                                             'bpm'  95.754
                                    'search_title'  'big':1 'time':2
                                   'search_artist'  'whigfield':1
                                  'search_release'  'whigfield':1
                                     'search_rest'  '00electro':2 '00poprockelectronic':1 '04':8,13 'big':9,14 'electronic':15 'electropop':3 'mbz':5,10 'or':17 'synthpop':4 'we':16 'whigfield':6,7,11,12
                                    'search_combo'  '00electro':6 '00poprockelectronic':5 '04':12,17 'big':1A,13,18 'electronic':19 'electropop':7 'mbz':9,14 'or':21 'synthpop':8 'time':2A 'we':20 'whigfield':3B,4C,10,11,15,16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'eurodance', 'female vocalists', 'pop', '90s']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'euro house']

============================== file details ==============================
                                           'mtime'  1621695965.2599306  (2021-05-22 17:06:05)
                             'size'  4058658