======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '258'
                                          'artist'  'Vertical Horizon'
                                     'text_people'  ''
                                         'release'  'Running on Ice'
                                           'title'  'Angel Without Wings'
                                           '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-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'pop', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '95.528'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Running on Ice'
'TBPM' (BPM (beats per minute))                     '95.528'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Angel Without Wings'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Vertical Horizon'
'TRCK' (Track number/Position in set)               '6'
'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', '90s', 'alternative', 'pop', 'rock']
'TXXX:original release date'                        ['1999', '1999']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.611073'

========================== row from database ==========================
                                              'id'  1347548
                                            'path'  /data/Music/Bulk/00poprockelectronic/Vertical Horizon/MBZ;#Vertical Horizon;#Running on Ice;#06;#Angel Without Wings.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  258
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4138581
                                           'mtime'  1637330419
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Vertical Horizon;#Running Ice;#06;#Angel ifs songwriter indie rock
                                      'tag_artist'  Vertical Horizon
                                     'tag_release'  Running on Ice
                                       'tag_title'  Angel Without Wings
                                             'bpm'  95.528
                                    'search_title'  'angel':1 'wings':3 'without':2
                                   'search_artist'  'horizon':2 'vertical':1
                                  'search_release'  'ice':3 'on':2 'running':1
                                     'search_rest'  '00poprockelectronic':1 '06':11,14 'angel':12,15 'horizon':6,8 'ice':10,13 'ifs':16 'indie':18 'mbz':2,4 'rock':19 'running':7,9 'songwriter':17 'vertical':3,5
                                    'search_combo'  '00poprockelectronic':9 '06':19,22 'angel':1A,20,23 'horizon':5B,14,16 'ice':8C,18,21 'ifs':24 'indie':26 'mbz':10,12 'on':7C 'rock':27 'running':6C,15,17 'songwriter':25 'vertical':4B,11,13 'wings':3A 'without':2A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'pop', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330418.9222302  (2021-11-19 15:00:18)
                             'size'  4138581