======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '228'
                                          'artist'  'Blossom'
                                     'text_people'  ''
                                         'release'  'Happy Hardcore 8'
                                           'title'  'Bicycle Race'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-2', 'Q-OLDST-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', "
 "'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'trip hop', 'downtempo', 'happy hardcore', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-happy hardcore'
                                             'bpm'  '90.573'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Happy Hardcore 8'
'TBPM' (BPM (beats per minute))                     '90.573'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-happy hardcore'
'TIT2' (Title/songname/content description)         'Bicycle Race'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Blossom'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['german', 'trip hop', 'downtempo', 'happy hardcore', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.49 dB'
'TXXX:replaygain_track_peak'                        '0.414611'

========================== row from database ==========================
                                              'id'  1343087
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Blossom__Happy Hardcore 8__10 - Bicycle Race.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  228
                                           'genre'  electronic-th-ent-happy hardcore
                                        'filesize'  3657885
                                           'mtime'  1639511351
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Blossom__Happy 8__10 electronic th ent happy hardcore
                                      'tag_artist'  Blossom
                                     'tag_release'  Happy Hardcore 8
                                       'tag_title'  Bicycle Race
                                             'bpm'  90.573
                                    'search_title'  'bicycle':1 'race':2
                                   'search_artist'  'blossom':1
                                  'search_release'  '8':3 'happy':1 'hardcore':2
                                     'search_rest'  '00poprockelectronic':1 '10':10 '8':9 'blossom':7 'electronic':11 'ent':13 'files':5,6 'happy':8,14 'hardcore':15 'loose':3,4 'th':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 '10':16 '8':6C,15 'bicycle':1A 'blossom':3B,13 'electronic':17 'ent':19 'files':11,12 'happy':4C,14,20 'hardcore':5C,21 'loose':9,10 'race':2A 'th':18 'unsorted':8
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'Q-SYN-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'trip hop', 'downtempo', 'happy hardcore', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1639511350.727115  (2021-12-14 20:49:10)
                             'size'  3657885