======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '256'
                                          'artist'  'Cdb'
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 119'
                                           'title'  "Let's Groove"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['soul', 'funk', 'cdb', 'australian', 'dance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '37'
                                      'tracktotal'  '100'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '126.2'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 119'
'TBPM' (BPM (beats per minute))                     '126.2'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         "Let's Groove"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cdb'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '37/100'
'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:lastfmtags'                                   ['soul', 'funk', 'cdb', 'australian', 'dance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.515398'

========================== row from database ==========================
                                              'id'  1503398
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 119/38 Cdb - Let_s Groove.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  256
                                           'genre'  electronic-generic or radio
                                        'filesize'  10670839
                                           'mtime'  1621695976
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 38 Let_s electronic generic or radio
                                      'tag_artist'  Cdb
                                     'tag_release'  100 Oldies Deel 119
                                       'tag_title'  Let's Groove
                                             'bpm'  126.2
                                    'search_title'  'groove':4 'let':1 'lets':3 's':2
                                   'search_artist'  'cdb':1
                                  'search_release'  '100':1 '119':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '38':4 'deel':3 'electronic':7 'generic':8 'let':5 'oldies':2 'or':9 'radio':10 's':6
                                    'search_combo'  '00poprockelectronic':10 '100':6C '119':9C '38':13 'cdb':5B 'deel':8C,12 'electronic':16 'generic':17 'groove':4A 'let':1A,14 'lets':3A 'oldies':7C,11 'or':18 'radio':19 's':2A,15
                                    'tag_tracknum'  37
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'funk', 'cdb', 'australian', 'dance']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695976.4899988  (2021-05-22 17:06:16)
                             'size'  10670839