======================== unified (from filesystem) ========================
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                                        'duration'  '208'
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                                     'text_people'  'Martin Molin'
                                         'release'  'Wintergatan'
                                           'title'  'Biking Is Better'
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                                      'lastfmtags'  "['instrumental', 'swedish', 'sweden', 'electronic', 'experimental']"
                                     'discogstags'  "['post rock', 'prog rock', 'electronic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '9'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-electronic'
                                             'bpm'  '119.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '119.9'
'TCOM' (Composer)                                   'Martin Molin'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-electronic'
'TDRC' (Recording time)                             '2013'
'TENC' (Encoded by)                                 'iTunes 10.1.0.56'
'TIT2' (Title/songname/content description)         'Biking Is Better'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wintergatan'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/9'
'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'                                  ['post rock', 'prog rock', 'electronic', 'rock']
'TXXX:lastfmtags'                                   ['instrumental', 'swedish', 'sweden', 'electronic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
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========================== row from database ==========================
                                              'id'  1239688
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Wintergatan - Wintergatan/05 biking is better.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  208
                                           'genre'  ifs-songwriter-indie-electronic
                                        'filesize'  8356906
                                           'mtime'  1638554882
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                                        'rest_str'   00singer songwriter eos 05 biking is better ifs songwriter indie electronic
                                      'tag_artist'  Wintergatan
                                     'tag_release'  Wintergatan
                                       'tag_title'  Biking Is Better
                                             'bpm'  119.9
                                    'search_title'  'better':3 'biking':1 'is':2
                                   'search_artist'  'wintergatan':1
                                  'search_release'  'wintergatan':1
                                     'search_rest'  '00singer':1 'better':6 'biking':4 'electronic':9 'eos':3 'ifs':7 'indie':8 'is':5 'songwriter':2
                                    'search_combo'  '00singer':6 'better':3A,11 'biking':1A,9 'electronic':14 'eos':8 'ifs':12 'indie':13 'is':2A,10 'songwriter':7 'wintergatan':4B,5C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'swedish', 'sweden', 'electronic', 'experimental']
                                        'tag_date'  2013
                                     'discogstags'  ['post rock', 'prog rock', 'electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1638554881.5111618  (2021-12-03 19:08:01)
                             'size'  8356906