======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '517'
                                          'artist'  'Art Department'
                                     'text_people'  ''
                                         'release'  'The Top 100 Tracks of 2010'
                                           'title'  'Without You (Extended 12" Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['house', 'techno', 'electronic', 'deep house', 'minimal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '120.256'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Top 100 Tracks of 2010'
'TBPM' (BPM (beats per minute))                     '120.256'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Without You (Extended 12" Mix)'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Art Department'
'TPE2' (Band/orchestra/accompaniment)               'Art Department'
'TPUB' (Publisher)                                  'Crosstown Rebels'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['house', 'techno', 'electronic', 'deep house', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.767373'

========================== row from database ==========================
                                              'id'  1296854
                                            'path'  /data/Music/Bulk/00poprockelectronic/Africa HiTech - The Top 100 Tracks of 2010/Art_Department-Without_You.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  517
                                           'genre'  electronic-unsorted
                                        'filesize'  20736815
                                           'mtime'  1620566970
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Africa HiTech Art_Department Without_You electronic unsorted
                                      'tag_artist'  Art Department
                                     'tag_release'  The Top 100 Tracks of 2010
                                       'tag_title'  Without You (Extended 12" Mix)
                                             'bpm'  120.256
                                    'search_title'  '12':5 'extended':3,4 'mix':6,7 'without':1 'you':2
                                   'search_artist'  'art':1 'department':2
                                  'search_release'  '100':3 '2010':6 'of':5 'the':1 'top':2 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 'africa':2 'art':4 'department':5 'electronic':8 'hi':10 'hitech':3 'tech':11 'unsorted':9 'without':6 'you':7
                                    'search_combo'  '00poprockelectronic':16 '100':12C '12':5A '2010':15C 'africa':17 'art':8B,19 'department':9B,20 'electronic':23 'extended':3A,4A 'hi':25 'hitech':18 'mix':6A,7A 'of':14C 'tech':26 'the':10C 'top':11C 'tracks':13C 'unsorted':24 'without':1A,21 'you':2A,22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', '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-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['house', 'techno', 'electronic', 'deep house', 'minimal']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620566970.397693  (2021-05-09 15:29:30)
                             'size'  20736815