======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '248'
                                          'artist'  '4 Non Blondes'
                                     'text_people'  ''
                                         'release'  "What's Up?"
                                           'title'  "What's Up? (Piano Version)"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '144.233'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "What's Up?"
'TBPM' (BPM (beats per minute))                     '144.233'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "What's Up? (Piano Version)"
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               '4 Non Blondes'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.511052'

========================== row from database ==========================
                                              'id'  1499950
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/4 Non Blondes/4__MBZ;#4 Non Blondes;#What_s Up;#04;#What_s Up (Piano Version).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  248
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3976730
                                           'mtime'  1637330342
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 4__MBZ;#4 Blondes;#What_s Up;#04;#What_s ifs songwriter indie rock
                                      'tag_artist'  4 Non Blondes
                                     'tag_release'  What's Up?
                                       'tag_title'  What's Up? (Piano Version)
                                             'bpm'  144.233
                                    'search_title'  'piano':5,6 's':2 'up':4 'version':7,8 'what':1 'whats':3
                                   'search_artist'  '4':1 'blondes':3 'non':2
                                  'search_release'  's':2 'up':4 'what':1 'whats':3
                                     'search_rest'  '00poprockelectronic':1 '04':17,21 '4':4,6,7,9 'blondes':10,13 'ifs':24 'indie':26 'indierock':3 'mbz':5,8 'poprock':2 'rock':27 's':12,15,19,23 'songwriter':25 'up':16,20 'what':11,14,18,22
                                    'search_combo'  '00poprockelectronic':16 '04':32,36 '4':9B,19,21,22,24 'blondes':11B,25,28 'ifs':39 'indie':41 'indierock':18 'mbz':20,23 'non':10B 'piano':5A,6A 'poprock':17 'rock':42 's':2A,13C,27,30,34,38 'songwriter':40 'up':4A,15C,31,35 'version':7A,8A 'what':1A,12C,26,29,33,37 'whats':3A,14C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'female vocalists', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330341.9066658  (2021-11-19 14:59:01)
                             'size'  3976730