======================== unified (from filesystem) ========================
                                         'bitrate'  '320.013'
                                        'duration'  '199'
                                          'artist'  'Chris Bouchillon'
                                     'text_people'  ''
                                         'release'  'Good for What Ails You: Music of the Medicine Shows, 1926-1937 - Disk1'
                                           'title'  'Born in Hard Luck'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['americana', 'south carolina']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '129.813'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Good for What Ails You: Music of the Medicine Shows, 1926-1937 - Disk1'
'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Born in Hard Luck'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chris Bouchillon'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['americana', 'south carolina']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.94 dB'
'TXXX:replaygain_track_peak'                        '0.471396'

========================== row from database ==========================
                                              'id'  675874
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Good for What Ails You Music of the Medicine Shows, 1926-1937 - Disk1/23 - Chris Bouchillon - Born in Hard Luck.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  199
                                           'genre'  loc-namerica-country;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  7965544
                                           'mtime'  1621627988
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 23 loc namerica country;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Chris Bouchillon
                                     'tag_release'  Good for What Ails You: Music of the Medicine Shows, 1926-1937 - Disk1
                                       'tag_title'  Born in Hard Luck
                                             'bpm'  129.813
                                    'search_title'  'born':1 'hard':3 'in':2 'luck':4
                                   'search_artist'  'bouchillon':2 'chris':1
                                  'search_release'  '1926':13 '19261937':15 '1937':14 'ails':4 'disk1':16 'for':2 'good':1 'medicine':10 'music':7 'of':8 'shows':11,12 'the':9 'what':3 'you':5,6
                                     'search_rest'  '23':5 'country':4,8,10 'exotica':2 'jazz':1 'loc':6 'mor':17 'namerica':7 'oldies':3 'pl':12 'set':9,11,14,16 'shirleyspinoza':13,15
                                    'search_combo'  '1926':19C '19261937':21C '1937':20C '23':27 'ails':10C 'born':1A 'bouchillon':6B 'chris':5B 'country':26,30,32 'disk1':22C 'exotica':24 'for':8C 'good':7C 'hard':3A 'in':2A 'jazz':23 'loc':28 'luck':4A 'medicine':16C 'mor':39 'music':13C 'namerica':29 'of':14C 'oldies':25 'pl':34 'set':31,33,36,38 'shirleyspinoza':35,37 'shows':17C,18C 'the':15C 'what':9C 'you':11C,12C
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['americana', 'south carolina']
                                        'tag_date'  2005
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621627987.5774684  (2021-05-21 22:13:07)
                             'size'  7965544