======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '395'
                                          'artist'  'Subheim'
                                     'text_people'  ''
                                         'release'  'Approach'
                                           'title'  'Hollow'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['melancholic idm', 'electronic', 'idm', 'downtempo', 'ambient']"
                                     'discogstags'  "['idm', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '145.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Approach'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Hollow'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Subheim'
'TRCK' (Track number/Position in set)               '6'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98 (http://www.mp3dev.org/)'
'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'                                  ['idm', 'electronic']
'TXXX:lastfmtags'                                   ['melancholic idm', 'electronic', 'idm', 'downtempo', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.90 dB'
'TXXX:replaygain_track_peak'                        '0.514657'

========================== row from database ==========================
                                              'id'  1352298
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Subheim/Approach/06-hollow.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  395
                                           'genre'  electronic-ambient
                                        'filesize'  15807486
                                           'mtime'  1636910998
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer 06 hollow electronic ambient
                                      'tag_artist'  Subheim
                                     'tag_release'  Approach
                                       'tag_title'  Hollow
                                             'bpm'  145.8
                                    'search_title'  'hollow':1
                                   'search_artist'  'subheim':1
                                  'search_release'  'approach':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 'ambient':5 'electronic':4 'hollow':3
                                    'search_combo'  '00calmer':5 '00poprockelectronic':4 'ambient':8 'approach':3C 'electronic':7 'hollow':1A,6 'subheim':2B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['melancholic idm', 'electronic', 'idm', 'downtempo', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['idm', 'electronic']

============================== file details ==============================
                                           'mtime'  1636910997.747362  (2021-11-14 18:29:57)
                             'size'  15807486