======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '29'
                                          'artist'  'Leonard Emanuel'
                                     'text_people'  ''
                                         'release'  'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
                                           'title'  'Old-timey Holler'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-2', 'q-syn-1', 'q-bass-1', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['folk', 'outsider', 'interstitials']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '30'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'loc-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '144.9'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
'TBPM' (BPM (beats per minute))                     '144.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Old-timey Holler'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Leonard Emanuel'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01/30'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['folk', 'outsider', 'interstitials']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.40 dB'
'TXXX:replaygain_track_peak'                        '0.311842'

========================== row from database ==========================
                                              'id'  717470
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/v.a. - WFMU - Phonoanomalies - A Totally New Recording for Hi-Fi Bugs/01_-_Leonard_Emanuel_-_Old-timey_Holler.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  29
                                           'genre'  loc-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  721772
                                           'mtime'  1621629056
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm v.a. WFMU 01_ _Leonard_Emanuel_ _Old timey_Holler loc unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Leonard Emanuel
                                     'tag_release'  Phonoanomalies: A Totally New Recording for Hi-Fi Bugs
                                       'tag_title'  Old-timey Holler
                                             'bpm'  144.9
                                    'search_title'  'holler':4 'old':1 'oldtimey':3 'timey':2
                                   'search_artist'  'emanuel':2 'leonard':1
                                  'search_release'  'a':3 'bugs':11 'fi':9 'for':7 'hi':8 'hifi':10 'new':5 'phonoanomalies':1,2 'recording':6 'totally':4
                                     'search_rest'  '01':5 'a':2 'emanuel':7 'holler':10 'leonard':6 'loc':11 'mor':21 'old':8 'pl':16 'set':13,15,18,20 'shirleyspinoza':17,19 'timey':9 'unsorted':12,14 'v':1 'va':3 'wfmu':4
                                    'search_combo'  '01':22 'a':9C,19 'bugs':17C 'emanuel':6B,24 'fi':15C 'for':13C 'hi':14C 'hifi':16C 'holler':4A,27 'leonard':5B,23 'loc':28 'mor':38 'new':11C 'old':1A,25 'oldtimey':3A 'phonoanomalies':7C,8C 'pl':33 'recording':12C 'set':30,32,35,37 'shirleyspinoza':34,36 'timey':2A,26 'totally':10C 'unsorted':29,31 'v':18 'va':20 'wfmu':21
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'outsider', 'interstitials']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629056.2097476  (2021-05-21 22:30:56)
                             'size'  721772