======================== unified (from filesystem) ========================
                                         'bitrate'  '213.917'
                                        'duration'  '47'
                                          'artist'  'Rex Brown Company'
                                     'text_people'  ''
                                         'release'  'Electronic toys'
                                           'title'  'Round up'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-3', 'q-chart-1', 'q-drums-2', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['funk', 'library']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '145.8'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Electronic toys'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Round up'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rex Brown Company'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['funk', 'library']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.426962'

========================== row from database ==========================
                                              'id'  1529568
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/v.a. -electronic toys [a retrospective of 70_s synthesizer music]  1996/02 - rex brown company - round up.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  47
                                           'genre'  electronic-experimental
                                        'filesize'  1265536
                                           'mtime'  1636917408
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm v.a. electronic [a retrospective of 70_s synthesizer music] 1996 02 rex brown company round electronic experimental
                                      'tag_artist'  Rex Brown Company
                                     'tag_release'  Electronic toys
                                       'tag_title'  Round up
                                             'bpm'  145.8
                                    'search_title'  'round':1 'up':2
                                   'search_artist'  'brown':2 'company':3 'rex':1
                                  'search_release'  'electronic':1 'toys':2
                                     'search_rest'  '1996':14 '70':9 'a':2,5,6 'brown':16 'company':17 'electronic':4 'experimental':19 'music':12,13 'of':8 'retrospective':7 'rex':15 'round':18 's':10 'synthesizer':11 'v':1 'va':3
                                    'search_combo'  '1996':21 '70':16 'a':9,12,13 'brown':4B,23 'company':5B,24 'electronic':6C,11 'experimental':26 'music':19,20 'of':15 'retrospective':14 'rex':3B,22 'round':1A,25 's':17 'synthesizer':18 'toys':7C 'up':2A 'v':8 'va':10
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'library']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636917407.5235844  (2021-11-14 20:16:47)
                             'size'  1265536