======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '224'
                                          'artist'  '16 Bit'
                                     'text_people'  ''
                                         'release'  'Flat Beat / Classical [12" Vin'
                                           'title'  'Classical'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['dubstep', 'electronic', 'bass', '16 bit', 'techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '139.948'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Flat Beat / Classical [12" Vin'
'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Classical'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               '16 Bit'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dubstep', 'electronic', 'bass', '16 bit', 'techno']
'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'                        '-3.76 dB'
'TXXX:replaygain_track_peak'                        '0.571397'

========================== row from database ==========================
                                              'id'  1302690
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/16 Bit - Classical.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  224
                                           'genre'  electronic-unsorted
                                        'filesize'  8988089
                                           'mtime'  1620572658
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic unsorted
                                      'tag_artist'  16 Bit
                                     'tag_release'  Flat Beat / Classical [12" Vin
                                       'tag_title'  Classical
                                             'bpm'  139.948
                                    'search_title'  'classical':1
                                   'search_artist'  'bit':1
                                  'search_release'  '12':4,5 'beat':2 'classical':3 'flat':1 'vin':6
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 '12':6C,7C 'beat':4C 'bit':2B 'classical':1A,5C 'electronic':15 'files':13,14 'flat':3C 'loose':11,12 'unsorted':10 'vin':8C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           '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'  ['dubstep', 'electronic', 'bass', '16 bit', 'techno']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620572658.151974  (2021-05-09 17:04:18)
                             'size'  8988089