======================== unified (from filesystem) ========================
                                         'bitrate'  '269.552'
                                        'duration'  '315'
                                          'artist'  'Acronym'
                                     'text_people'  ''
                                         'release'  'Yggdrasil'
                                           'title'  'Jotunheim'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['minimal techno', 'electronic', 'techno', 'ambient techno', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '128.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Yggdrasil'
'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'Jotunheim'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Acronym'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimal techno', 'electronic', 'techno', 'ambient techno', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.91 dB'
'TXXX:replaygain_track_peak'                        '0.613107'

========================== row from database ==========================
                                              'id'  1380794
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Acronym - Yggdrasil (2014) v0/02 Jotunheim.mp3
                                         'working'  None
                                         'bitrate'  269
                                    'duration_sec'  315
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  10630464
                                           'mtime'  1621085112
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats (2014) v0 02 electronic th techno minimal or deephouse
                                      'tag_artist'  Acronym
                                     'tag_release'  Yggdrasil
                                       'tag_title'  Jotunheim
                                             'bpm'  128.0
                                    'search_title'  'jotunheim':1
                                   'search_artist'  'acronym':1
                                  'search_release'  'yggdrasil':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 '2014':6,7 'beats':5 'deephouse':14 'electronic':9 'harder':4 'house':3 'minimal':12 'or':13 'techno':11 'th':10 'v0':8
                                    'search_combo'  '00poprockelectronic':4 '00techno':5 '2014':9,10 'acronym':2B 'beats':8 'deephouse':17 'electronic':12 'harder':7 'house':6 'jotunheim':1A 'minimal':15 'or':16 'techno':14 'th':13 'v0':11 'yggdrasil':3C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'electronic', 'techno', 'ambient techno', 'ambient']
                                        'tag_date'  2014
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085112.3333492  (2021-05-15 15:25:12)
                             'size'  10630464